From f0accc8df88c2d3607924e7918e31466e5e3368c Mon Sep 17 00:00:00 2001
From: Lorenz Stechauner <lorenz.stechauner@necronda.net>
Date: Tue, 11 Aug 2026 00:26:27 +0200
Subject: [PATCH] Add fast select buttons

---
 PamhagenSysCtrl/Helpers/PamhagenGraph.cs      |  97 +++++++-----
 PamhagenSysCtrl/Helpers/Pipeline/Graph.cs     |   8 +
 PamhagenSysCtrl/Helpers/Pipeline/Valve.cs     |   4 +-
 .../Windows/PlantSchemeWindow.xaml            |  87 ++++++++++-
 .../Windows/PlantSchemeWindow.xaml.cs         | 145 +++++++++++++++---
 5 files changed, 276 insertions(+), 65 deletions(-)

diff --git a/PamhagenSysCtrl/Helpers/PamhagenGraph.cs b/PamhagenSysCtrl/Helpers/PamhagenGraph.cs
index ec88b03..58a2c41 100644
--- a/PamhagenSysCtrl/Helpers/PamhagenGraph.cs
+++ b/PamhagenSysCtrl/Helpers/PamhagenGraph.cs
@@ -18,6 +18,17 @@ namespace PamhagenSysCtrl.Helpers {
         public readonly Pump P6;
         public readonly EncasedAuger Auger1;
         public readonly EncasedAuger Auger3;
+        public readonly Press Press1;
+        public readonly Press Press2;
+        public readonly Tank Tank1;
+        public readonly Tank Tank2;
+        public readonly Tank Tank3;
+        public readonly Tank Tank4;
+        public readonly Tank Tank5;
+        public readonly Tank Tank6;
+        public readonly Tank Tank7;
+        public readonly Tank Tank8;
+        public readonly Tank Tank9;
 
         public PamhagenGraph() {
             double mw2X = 180;
@@ -180,37 +191,37 @@ namespace PamhagenSysCtrl.Helpers {
             var xv23 = new PipeJoin(t1X + 15, ltg6Y);
             var v22 = CreateValve(22, t1X - 15, tValveY);
             var v23 = CreateValve(23, t1X + 15, tValveY);
-            var t1 = CreateTank(1, t1X, tanksY, 35000);
+            Tank1 = CreateTank(1, t1X, tanksY, 35000);
             CreatePipe(xv20, xv22, true, label: "Ltg. 7", labelOffsetX: 50);
             CreatePipe(xv21, xv23, true, label: "Ltg. 6", labelOffsetX: 20);
             CreatePipe(xv22, v22);
             CreatePipe(xv23, v23);
-            CreateInlet(v22, t1);
-            CreateInlet(v23, t1);
+            CreateInlet(v22, Tank1);
+            CreateInlet(v23, Tank1);
 
             var xv24 = new PipeJoin(t2X - 15, ltg7Y);
             var xv25 = new PipeJoin(t2X + 15, ltg6Y);
             var v24 = CreateValve(24, t2X - 15, tValveY);
             var v25 = CreateValve(25, t2X + 15, tValveY);
-            var t2 = CreateTank(2, t2X, tanksY, 35000);
+            Tank2 = CreateTank(2, t2X, tanksY, 35000);
             CreatePipe(xv22, xv24);
             CreatePipe(xv23, xv25);
             CreatePipe(xv24, v24);
             CreatePipe(xv25, v25);
-            CreateInlet(v24, t2);
-            CreateInlet(v25, t2);
+            CreateInlet(v24, Tank2);
+            CreateInlet(v25, Tank2);
 
             var xv26 = new PipeJoin(t3X - 15, ltg7Y);
             var xv27 = new PipeJoin(t3X + 15, ltg6Y);
             var v26 = CreateValve(26, t3X - 15, tValveY);
             var v27 = CreateValve(27, t3X + 15, tValveY);
-            var t3 = CreateTank(3, t3X, tanksY, 35000);
+            Tank3 = CreateTank(3, t3X, tanksY, 35000);
             CreatePipe(xv24, xv26);
             CreatePipe(xv25, xv27);
             CreatePipe(xv26, v26);
             CreatePipe(xv27, v27);
-            CreateInlet(v26, t3);
-            CreateInlet(v27, t3);
+            CreateInlet(v26, Tank3);
+            CreateInlet(v27, Tank3);
 
             var v28 = CreateValve(28, (t3X + t4X) / 2, ltg7Y);
             var v29 = CreateValve(29, (t3X + t4X) / 2, ltg6Y);
@@ -221,25 +232,25 @@ namespace PamhagenSysCtrl.Helpers {
             var xv31 = new PipeJoin(t4X + 15, ltg6Y);
             var v30 = CreateValve(30, t4X - 15, tValveY);
             var v31 = CreateValve(31, t4X + 15, tValveY);
-            var t4 = CreateTank(4, t4X, tanksY, 35000);
+            Tank4 = CreateTank(4, t4X, tanksY, 35000);
             CreatePipe(v28, xv30);
             CreatePipe(v29, xv31);
             CreatePipe(xv30, v30);
             CreatePipe(xv31, v31);
-            CreateInlet(v30, t4);
-            CreateInlet(v31, t4);
+            CreateInlet(v30, Tank4);
+            CreateInlet(v31, Tank4);
 
             var xv32 = new PipeJoin(t5X - 15, ltg7Y);
             var xv33 = new PipeJoin(t5X + 15, ltg6Y);
             var v32 = CreateValve(32, t5X - 15, tValveY);
             var v33 = CreateValve(33, t5X + 15, tValveY);
-            var t5 = CreateTank(5, t5X, tanksY, 35000);
+            Tank5 = CreateTank(5, t5X, tanksY, 35000);
             CreatePipe(xv30, xv32, label: "Ltg. 7", labelOffsetX: 30);
             CreatePipe(xv31, xv33, label: "Ltg. 6", labelOffsetX: 0);
             CreatePipe(xv32, v32);
             CreatePipe(xv33, v33);
-            CreateInlet(v32, t5);
-            CreateInlet(v33, t5);
+            CreateInlet(v32, Tank5);
+            CreateInlet(v33, Tank5);
 
             var v34 = CreateValve(34, (t5X + t6X) / 2, ltg7Y);
             var v35 = CreateValve(35, (t5X + t6X) / 2, ltg6Y);
@@ -250,58 +261,58 @@ namespace PamhagenSysCtrl.Helpers {
             var xv37 = new PipeJoin(t6X - 15, ltg7Y);
             var v36 = CreateValve(36, t6X + 15, tValveY);
             var v37 = CreateValve(37, t6X - 15, tValveY);
-            var t6 = CreateTank(6, t6X, tanksY, 35000);
+            Tank6 = CreateTank(6, t6X, tanksY, 35000);
             CreatePipe(v34, xv37);
             CreatePipe(v35, xv36);
             CreatePipe(xv37, v37);
             CreatePipe(xv36, v36);
-            CreateInlet(v36, t6);
-            CreateInlet(v37, t6);
+            CreateInlet(v36, Tank6);
+            CreateInlet(v37, Tank6);
 
             var xv38 = new PipeJoin(t7X + 15, ltg6Y);
             var xv39 = new PipeJoin(t7X - 15, ltg7Y);
             var v38 = CreateValve(38, t7X + 15, tValveY);
             var v39 = CreateValve(39, t7X - 15, tValveY);
-            var t7 = CreateTank(7, t7X, tanksY, 35000);
+            Tank7 = CreateTank(7, t7X, tanksY, 35000);
             CreatePipe(xv37, xv39);
             CreatePipe(xv36, xv38);
             CreatePipe(xv38, v38);
             CreatePipe(xv39, v39);
-            CreateInlet(v38, t7);
-            CreateInlet(v39, t7);
+            CreateInlet(v38, Tank7);
+            CreateInlet(v39, Tank7);
 
             var xv40 = new PipeJoin(t8X + 15, ltg6Y);
             var xv41 = new PipeJoin(t8X - 15, ltg7Y);
             var v40 = CreateValve(40, t8X + 15, tValveY);
             var v41 = CreateValve(41, t8X - 15, tValveY);
-            var t8 = CreateTank(8, t8X, tanksY, 35000);
+            Tank8 = CreateTank(8, t8X, tanksY, 35000);
             CreatePipe(xv38, xv40, label: "Ltg. 6", labelOffsetX: 0);
             CreatePipe(xv39, xv41, label: "Ltg. 7", labelOffsetX: 30);
             CreatePipe(xv40, v40);
             CreatePipe(xv41, v41);
-            CreateInlet(v40, t8);
-            CreateInlet(v41, t8);
+            CreateInlet(v40, Tank8);
+            CreateInlet(v41, Tank8);
 
             var v42 = CreateValve(42, t9X + 15, tValveY);
             var v43 = CreateValve(43, t9X - 15, tValveY);
-            var t9 = CreateTank(9, t9X, tanksY, 35000);
+            Tank9 = CreateTank(9, t9X, tanksY, 35000);
             CreatePipe(xv40, v42);
             CreatePipe(xv41, v43);
-            CreateInlet(v42, t9);
-            CreateInlet(v43, t9);
+            CreateInlet(v42, Tank9);
+            CreateInlet(v43, Tank9);
 
             var xp12 = new PipeJoin((t1X + t2X) / 2, tanksY + 80);
             P12 = new Pump("P1/2", (t1X + t2X) / 2, tanksY + 110, () => App.Plant?.P12 ?? default, () => App.Plant?.P12HasClearance ?? false, (x) => SelectedPaths.Any(p => p.Hops.Any(h => h.Node == x)));
-            CreateOutlet(t1, xp12);
-            CreateOutlet(t2, xp12);
+            CreateOutlet(Tank1, xp12);
+            CreateOutlet(Tank2, xp12);
             CreatePipe(xp12, P12);
 
             P3 = new Pump("P3", t3X, tanksY + 110, () => App.Plant?.P3 ?? default, () => App.Plant?.P3HasClearance ?? false, (x) => SelectedPaths.Any(p => p.Hops.Any(h => h.Node == x)));
             P4 = new Pump("P4", t4X, tanksY + 110, () => App.Plant?.P4 ?? default, () => App.Plant?.P4HasClearance ?? false, (x) => SelectedPaths.Any(p => p.Hops.Any(h => h.Node == x)));
             P5 = new Pump("P5", t5X, tanksY + 110, () => App.Plant?.P5 ?? default, () => App.Plant?.P5HasClearance ?? false, (x) => SelectedPaths.Any(p => p.Hops.Any(h => h.Node == x)));
-            CreateOutlet(t3, P3);
-            CreateOutlet(t4, P4);
-            CreateOutlet(t5, P5);
+            CreateOutlet(Tank3, P3);
+            CreateOutlet(Tank4, P4);
+            CreateOutlet(Tank5, P5);
 
             var v44 = CreateValve(44, (t1X + t2X) / 2, tanksY + 150);
             var v45 = CreateValve(45, t3X, tanksY + 150);
@@ -329,10 +340,10 @@ namespace PamhagenSysCtrl.Helpers {
             var xt7 = new PipeJoin(t7X, tanksY + 110);
             var xt8 = new PipeJoin(t8X, tanksY + 110);
             P6 = new Pump("P6", t6X, tanksY + 150, () => App.Plant?.P6 ?? default, () => App.Plant?.P6HasClearance ?? false, (x) => SelectedPaths.Any(p => p.Hops.Any(h => h.Node == x)));
-            CreateOutlet(t6, xt6);
-            CreateOutlet(t7, xt7);
-            CreateOutlet(t8, xt8);
-            CreateOutlet(t9, xt8);
+            CreateOutlet(Tank6, xt6);
+            CreateOutlet(Tank7, xt7);
+            CreateOutlet(Tank8, xt8);
+            CreateOutlet(Tank9, xt8);
             CreatePipe(xt8, xt7);
             CreatePipe(xt7, xt6);
             CreatePipe(xt6, P6);
@@ -343,8 +354,8 @@ namespace PamhagenSysCtrl.Helpers {
             var prX = (pr1X + pr2X) / 2;
             var pr1cX = prX - 15;
             var pr2cX = prX + 15;
-            var press1 = new Press("Presse 1", pr1X, prY, 20000, () => FillState.Unknown);
-            var press2 = new Press("Presse 2", pr2X, prY, 15000, () => FillState.Unknown);
+            Press1 = new Press("Presse 1", pr1X, prY, 20000, () => FillState.Unknown);
+            Press2 = new Press("Presse 2", pr2X, prY, 15000, () => FillState.Unknown);
             var v50 = CreateValve(50, pr2cX + 30, 580);
             var v51 = CreateValve(51, pr1cX - 30, 580);
             var v52 = CreateValve(52, pr1cX - 30, 610);
@@ -390,8 +401,8 @@ namespace PamhagenSysCtrl.Helpers {
             var zv2 = new CenterValve("ZV2", pr2cX, prY - 40, () => App.Plant?.Press2HasClearance ?? false);
             CreatePipe(xp6, zv1, true);
             CreatePipe(xp8, zv2, true);
-            CreateInlet(zv1, press1, true);
-            CreateInlet(zv2, press2, true);
+            CreateInlet(zv1, Press1, true);
+            CreateInlet(zv2, Press2, true);
         }
 
         protected Valve CreateValve(int n, double x, double y) {
@@ -455,7 +466,11 @@ namespace PamhagenSysCtrl.Helpers {
         private void UpdateValvesAdjacientToPath(Path path, bool locked, bool? wantOpen = null) {
             foreach (var (edge, node) in path.Hops) {
                 TraverseSubgraph(node, (n) => n is Valve || n is ISink || n is Pump, valveAction: (v) => {
-                    v.IsLocked = locked;
+                    if (locked) {
+                        v.LockedForPaths.Add(path);
+                    } else {
+                        v.LockedForPaths.Remove(path);
+                    }
                     if (wantOpen.HasValue) {
                         if (wantOpen.Value) {
                             App.Plant?.OpenV(v.Nr);
diff --git a/PamhagenSysCtrl/Helpers/Pipeline/Graph.cs b/PamhagenSysCtrl/Helpers/Pipeline/Graph.cs
index 5a49e57..83f9683 100644
--- a/PamhagenSysCtrl/Helpers/Pipeline/Graph.cs
+++ b/PamhagenSysCtrl/Helpers/Pipeline/Graph.cs
@@ -54,6 +54,14 @@ namespace PamhagenSysCtrl.Helpers.Pipeline {
             return p;
         }
 
+        public Path? GetFreePath(IEnumerable<INode> points, bool overrideStart = false) {
+            if (overrideStart) {
+                return GetPath(points, (n) => n is not ISink && (n is not Valve v || !v.LockedForPaths.Any(p => p.Start != points.First())));
+            } else {
+                return GetPath(points, (n) => n is not ISink && (n is not Valve v || !v.IsLocked));
+            }
+        }
+
         public Path? GetPath(IEnumerable<INode> points, Func<INode, bool>? valid = null) {
             if (points.Count() < 2) return null;
             var start = points.First();
diff --git a/PamhagenSysCtrl/Helpers/Pipeline/Valve.cs b/PamhagenSysCtrl/Helpers/Pipeline/Valve.cs
index 85d56b3..3768ec0 100644
--- a/PamhagenSysCtrl/Helpers/Pipeline/Valve.cs
+++ b/PamhagenSysCtrl/Helpers/Pipeline/Valve.cs
@@ -14,7 +14,9 @@ namespace PamhagenSysCtrl.Helpers.Pipeline {
         public string Label => $"V{Nr}";
         public Brush? Highlight { get; set; }
 
-        public bool IsLocked { get; set; }
+        public readonly ISet<Path> LockedForPaths = new HashSet<Path>();
+
+        public bool IsLocked => LockedForPaths.Any();
         public bool IsOpen => CallbackIsOpen();
         public bool WantOpen => CallbackWantOpen(this);
         public ISet<IEdge> Inputs { get; init; }
diff --git a/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml b/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml
index 5a6f623..ef4c2c8 100644
--- a/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml
+++ b/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml
@@ -57,11 +57,96 @@
             <Canvas x:Name="SchemeCanvas" Width="1550" Height="900" VerticalAlignment="Center" HorizontalAlignment="Center" SnapsToDevicePixels="True"
                     MouseMove="SchemeCanvas_MouseMove" MouseLeftButtonDown="SchemeCanvas_MouseLeftButtonDown" MouseLeftButtonUp="SchemeCanvas_MouseLeftButtonUp" Grid.ColumnSpan="2" Margin="25,0,0,0">
             </Canvas>
+
+            <Grid Grid.Row="1" HorizontalAlignment="Right" VerticalAlignment="Bottom" Margin="10">
+                <Grid.ColumnDefinitions>
+                    <ColumnDefinition Width="160"/>
+                    <ColumnDefinition Width="5"/>
+                    <ColumnDefinition Width="160"/>
+                </Grid.ColumnDefinitions>
+                <Grid.RowDefinitions>
+                    <RowDefinition Height="50"/>
+                    <RowDefinition Height="5"/>
+                    <RowDefinition Height="50"/>
+                    <RowDefinition Height="5"/>
+                    <RowDefinition Height="50"/>
+                    <RowDefinition Height="5"/>
+                    <RowDefinition Height="50"/>
+                    <RowDefinition Height="5"/>
+                    <RowDefinition Height="50"/>
+                    <RowDefinition Height="5"/>
+                    <RowDefinition Height="50"/>
+                    <RowDefinition Height="5"/>
+                    <RowDefinition Height="50"/>
+                </Grid.RowDefinitions>
+
+                <Button x:Name="FastSelectButton_MW1_Press1" Grid.Column="0" Grid.Row="0"
+                        Content="MW1 &#x2B9E; Presse 1" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+                <Button x:Name="FastSelectButton_MW2_Press1" Grid.Column="2" Grid.Row="0"
+                        Content="MW2 &#x2B9E; Presse 1" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+
+                <Button x:Name="FastSelectButton_MW1_Press2" Grid.Column="0" Grid.Row="2"
+                        Content="MW1 &#x2B9E; Presse 2" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+                <Button x:Name="FastSelectButton_MW2_Press2" Grid.Column="2" Grid.Row="2"
+                        Content="MW2 &#x2B9E; Presse 2" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+
+                <Button x:Name="FastSelectButton_MW1_Tank1" Grid.Column="0" Grid.Row="4"
+                        Content="MW1 &#x2B9E; Tank 1" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+                <Button x:Name="FastSelectButton_MW2_Tank1" Grid.Column="2" Grid.Row="4"
+                        Content="MW2 &#x2B9E; Tank 1" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+
+                <Button x:Name="FastSelectButton_MW1_Tank2" Grid.Column="0" Grid.Row="6"
+                        Content="MW1 &#x2B9E; Tank 2" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+                <Button x:Name="FastSelectButton_MW2_Tank2" Grid.Column="2" Grid.Row="6"
+                        Content="MW2 &#x2B9E; Tank 2" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+
+                <Button x:Name="FastSelectButton_MW1_Tank3" Grid.Column="0" Grid.Row="8"
+                        Content="MW1 &#x2B9E; Tank 3" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+                <Button x:Name="FastSelectButton_MW2_Tank3" Grid.Column="2" Grid.Row="8"
+                        Content="MW2 &#x2B9E; Tank 3" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+
+                <Button x:Name="FastSelectButton_MW1_Tank4" Grid.Column="0" Grid.Row="10"
+                        Content="MW1 &#x2B9E; Tank 4" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+                <Button x:Name="FastSelectButton_MW2_Tank4" Grid.Column="2" Grid.Row="10"
+                        Content="MW2 &#x2B9E; Tank 4" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+
+                <Button x:Name="FastSelectButton_MW1_Tank5" Grid.Column="0" Grid.Row="12"
+                        Content="MW1 &#x2B9E; Tank 5" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+                <Button x:Name="FastSelectButton_MW2_Tank5" Grid.Column="2" Grid.Row="12"
+                        Content="MW2 &#x2B9E; Tank 5" FontSize="16" FontWeight="Bold"
+                        Click="FastSelectButton_Click" MouseEnter="FastSelectButton_Enter" MouseLeave="FastSelectButton_Leave"
+                        BorderThickness="2"/>
+            </Grid>
         </Grid>
 
         <StatusBar Grid.Row="2" BorderThickness="0,1,0,0" BorderBrush="Gray">
 
         </StatusBar>
-
     </Grid>
 </Window>
diff --git a/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml.cs b/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml.cs
index f3200c9..250018c 100644
--- a/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml.cs
+++ b/PamhagenSysCtrl/Windows/PlantSchemeWindow.xaml.cs
@@ -2,7 +2,9 @@ using PamhagenSysCtrl.Helpers;
 using PamhagenSysCtrl.Helpers.Pipeline;
 using System.Diagnostics;
 using System.Windows;
+using System.Windows.Controls;
 using System.Windows.Input;
+using System.Windows.Media;
 
 namespace PamhagenSysCtrl.Windows {
     public partial class PlantSchemeWindow : Window {
@@ -14,11 +16,51 @@ namespace PamhagenSysCtrl.Windows {
         private ISet<INode>? _lastSelected;
         private ISet<INode>? _hover;
 
+        public Path? HoveringPath {
+            get {
+                foreach (var b in FastSelectButtons.Where(b => b.Key.IsMouseOver)) {
+                    if (Graph.SelectedPaths.Any(p => p.Start == b.Value.Source && p.Hops.Last().Node == b.Value.Sink))
+                        continue;
+                    return Graph.GetFreePath([b.Value.Source, b.Value.Sink], true);
+                }
+
+                if (_lastSource == null || _hover == null || !(_hover.Count > 0 || _path.Count > 0))
+                    return null;
+                List<INode> points = [_lastSource, .. _path];
+                if (_hover.Count > 0 && !points.Contains(_hover.First())) {
+                    points.Add(_hover.First());
+                }
+                if (points.Count >= 2) {
+                    return Graph.GetFreePath(points);
+                } else {
+                    return null;
+                }
+            }
+        }
+
+        protected Dictionary<Button, (ISource Source, Pump Pump, ISink Sink)> FastSelectButtons;
+
         public PlantSchemeWindow() {
             InitializeComponent();
-            App.Plant?.Update += OnUpdate;
             Graph = new();
             Graph.Draw(SchemeCanvas);
+            FastSelectButtons = new Dictionary<Button, (ISource, Pump, ISink)> {
+                [FastSelectButton_MW1_Press1] = (Graph.MW1, Graph.MP1, Graph.Press1),
+                [FastSelectButton_MW2_Press1] = (Graph.MW2, Graph.MP2, Graph.Press1),
+                [FastSelectButton_MW1_Press2] = (Graph.MW1, Graph.MP1, Graph.Press2),
+                [FastSelectButton_MW2_Press2] = (Graph.MW2, Graph.MP2, Graph.Press2),
+                [FastSelectButton_MW1_Tank1] = (Graph.MW1, Graph.MP1, Graph.Tank1),
+                [FastSelectButton_MW2_Tank1] = (Graph.MW2, Graph.MP2, Graph.Tank1),
+                [FastSelectButton_MW1_Tank2] = (Graph.MW1, Graph.MP1, Graph.Tank2),
+                [FastSelectButton_MW2_Tank2] = (Graph.MW2, Graph.MP2, Graph.Tank2),
+                [FastSelectButton_MW1_Tank3] = (Graph.MW1, Graph.MP1, Graph.Tank3),
+                [FastSelectButton_MW2_Tank3] = (Graph.MW2, Graph.MP2, Graph.Tank3),
+                [FastSelectButton_MW1_Tank4] = (Graph.MW1, Graph.MP1, Graph.Tank4),
+                [FastSelectButton_MW2_Tank4] = (Graph.MW2, Graph.MP2, Graph.Tank4),
+                [FastSelectButton_MW1_Tank5] = (Graph.MW1, Graph.MP1, Graph.Tank5),
+                [FastSelectButton_MW2_Tank5] = (Graph.MW2, Graph.MP2, Graph.Tank5),
+            };
+            App.Plant?.Update += OnUpdate;
         }
 
         private void OnClosed(object sender, EventArgs evt) {
@@ -75,13 +117,34 @@ namespace PamhagenSysCtrl.Windows {
             } catch { }
         }
 
+        private void FastSelectButton_Enter(object sender, MouseEventArgs evt) {
+            UpdateScheme(evt.GetPosition(SchemeCanvas), evt.LeftButton == MouseButtonState.Pressed);
+        }
+
+        private void FastSelectButton_Leave(object sender, MouseEventArgs evt) {
+            UpdateScheme(evt.GetPosition(SchemeCanvas), evt.LeftButton == MouseButtonState.Pressed);
+        }
+
+        private void FastSelectButton_Click(object sender, RoutedEventArgs evt) {
+            if (sender is not Button b || !FastSelectButtons.TryGetValue(b, out var val))
+                return;
+
+            if (Graph.SelectedPaths.Select(p => (Path?)p).FirstOrDefault(p => p?.Start == val.Source, null) is Path p1) {
+                Graph.RemovePath(p1);
+                if (p1.Hops.Last().Node == val.Sink)
+                    return;
+            }
+            if (Graph.GetFreePath([val.Source, val.Sink]) is Path p2) {
+                Graph.AddPath(p2);
+                _lastSource = null;
+            }
+        }
+
         private void SchemeCanvas_MouseMove(object sender, MouseEventArgs evt) {
-            var p = evt.GetPosition(SchemeCanvas);
             UpdateScheme(evt.GetPosition(SchemeCanvas), evt.LeftButton == MouseButtonState.Pressed);
         }
 
         private void SchemeCanvas_MouseLeftButtonDown(object sender, MouseButtonEventArgs evt) {
-            var p = evt.GetPosition(SchemeCanvas);
             _lastSelected = UpdateScheme(evt.GetPosition(SchemeCanvas), evt.LeftButton == MouseButtonState.Pressed);
         }
 
@@ -108,13 +171,12 @@ namespace PamhagenSysCtrl.Windows {
                             Graph.RemovePath(path);
                         }
                     } else if (_lastSource != null && c is ISink sink) {
-                        var res = Graph.GetPath([_lastSource, .. _path, sink], (n) => n is not ISink && (n is not Valve v || !v.IsLocked));
-                        if (res is Path path) {
+                        if (Graph.GetFreePath([_lastSource, .. _path, sink]) is Path path) {
                             Graph.AddPath(path);
                             _lastSource = null;
                         }
                     } else if (_lastSource != null) {
-                        var path = Graph.GetPath([_lastSource, .. _path, c], (n) => n is not ISink && (n is not Valve v || !v.IsLocked));
+                        var path = Graph.GetFreePath([_lastSource, .. _path, c]);
                         if (path != null) {
                             _path.Add(c);
                         }
@@ -216,6 +278,30 @@ namespace PamhagenSysCtrl.Windows {
             UpdateScheme(pos, evt.LeftButton == MouseButtonState.Pressed);
         }
 
+        private static void SetFastSelectButton(Button b, int m, bool disabled) {
+            b.IsEnabled = !disabled;
+            if (m == 1) {
+                b.Background = Brushes.MintCream;
+                b.BorderBrush = Brushes.DarkGreen;
+                b.Foreground = Brushes.DarkGreen;
+            } else if (m == 2) {
+                b.Background = Brushes.MistyRose;
+                b.BorderBrush = Brushes.DarkRed;
+                b.Foreground = Brushes.DarkRed;
+            } else {
+                b.Background = Brushes.LightGray;
+                b.BorderBrush = Brushes.DimGray;
+                b.Foreground = Brushes.Black;
+            }
+        }
+
+        private void UpdateFastSelectButton(IEnumerable<Path> paths, Path? hoverPathDeactivate, Button b) {
+            var e = FastSelectButtons[b];
+            SetFastSelectButton(b,
+                paths.Any(p => p.Start == e.Source && p.Hops.Last().Node == e.Sink) ? (hoverPathDeactivate?.Start == e.Source && hoverPathDeactivate?.Hops.Last().Node == e.Sink) ? 2 : 1 : 0,
+                e.Pump.IsActive || Graph.GetFreePath([e.Source, e.Sink], overrideStart: true) == null);
+        }
+
         private ISet<INode> UpdateScheme(Point pos, bool down) {
             foreach (var e in Graph.Edges) {
                 e.Highlight = null;
@@ -227,7 +313,13 @@ namespace PamhagenSysCtrl.Windows {
                 }
             }
 
+            foreach (var b in FastSelectButtons) {
+                SetFastSelectButton(b.Key, 0, false);
+            }
+
             _hover = Graph.GetHover(pos.X, pos.Y);
+            var hoverButtons = FastSelectButtons.Where(b => b.Key.IsMouseOver).ToDictionary();
+            Path? hoverPathDeactivate = null;
             if (App.Plant?.ManualControlMode ?? false) {
                 foreach (var src in Graph.Nodes.Where(n => n is Pump)) {
                     Graph.ColorPipesByValves(src, PamhagenBrushes.Green, (src as Pump)?.State ?? default, PamhagenBrushes.DimOrange);
@@ -236,26 +328,25 @@ namespace PamhagenSysCtrl.Windows {
                 foreach (var p in Graph.SelectedPaths) {
                     Graph.ColorPipesAdjacientToPath(p, PamhagenBrushes.Green, p.Hops.Select(h => (h.Node as Pump)?.State ?? default).FirstOrDefault(n => n != MotorState.Halt), PamhagenBrushes.DimOrange);
                 }
-                if (_lastSource != null && (_hover.Count > 0 || _path.Count > 0)) {
-                    List<INode> points = [_lastSource, .. _path];
-                    if (_hover.Count > 0 && !points.Contains(_hover.First())) {
-                        points.Add(_hover.First());
-                    }
-                    if (points.Count >= 2) {
-                        var res = Graph.GetPath(points, (n) => n is not ISink && (n is not Valve v || !v.IsLocked));
-                        if (res is Path path) {
-                            Graph.ColorPipesAdjacientToPath(path, PamhagenBrushes.Green, default, PamhagenBrushes.DimOrange);
-                        }
-                    }
-                } else if (_lastSource == null && _hover.Count > 0 && Graph.SelectedPaths.Any(p => p.Start == _hover.First())) {
-                    var path = Graph.SelectedPaths.First(p => p.Start == _hover.First());
-                    var pumpActive = path.Hops.Any(h => (h.Node as Pump)?.IsActive ?? false);
+                if (_lastSource == null && _hover.Count > 0 && Graph.SelectedPaths.Select(p => (Path?)p).FirstOrDefault(p => p?.Start == _hover.First()) is Path path1) {
+                    var pumpActive = path1.Hops.Any(h => (h.Node as Pump)?.IsActive ?? false);
                     if (pumpActive) {
-                        foreach (var pump in path.Hops.Select(h => h.Node as Pump).Where(p => p != null)) {
+                        foreach (var pump in path1.Hops.Select(h => h.Node as Pump).Where(p => p != null)) {
                             pump?.Highlight = PamhagenBrushes.Red;
                         }
                     } else {
-                        Graph.ColorPipesAdjacientToPath(path, PamhagenBrushes.Red, default, null);
+                        hoverPathDeactivate = path1;
+                        Graph.ColorPipesAdjacientToPath(path1, PamhagenBrushes.Red, default, null);
+                    }
+                } else if (hoverButtons.Count != 0 && Graph.SelectedPaths.Select(p => (Path?)p).FirstOrDefault(p => p?.Start == hoverButtons.First().Value.Source) is Path path2) {
+                    var pumpActive = path2.Hops.Any(h => (h.Node as Pump)?.IsActive ?? false);
+                    if (pumpActive) {
+                        foreach (var pump in path2.Hops.Select(h => h.Node as Pump).Where(p => p != null)) {
+                            pump?.Highlight = PamhagenBrushes.Red;
+                        }
+                    } else {
+                        hoverPathDeactivate = path2;
+                        Graph.ColorPipesAdjacientToPath(path2, PamhagenBrushes.Red, default, null);
                     }
                 }
                 if (_lastSource != null) {
@@ -263,7 +354,17 @@ namespace PamhagenSysCtrl.Windows {
                         edge.Highlight = PamhagenBrushes.Green;
                     }
                 }
+                if (HoveringPath is Path hoveringPath) {
+                    Graph.ColorPipesAdjacientToPath(hoveringPath, PamhagenBrushes.Green, default, PamhagenBrushes.DimOrange);
+                }
             }
+
+            var paths = Graph.SelectedPaths;
+            if (HoveringPath is Path hp) paths = paths.Append(hp);
+            foreach (var b in FastSelectButtons.Keys) {
+                UpdateFastSelectButton(paths, hoverPathDeactivate, b);
+            }
+
             Graph.Update(_hover, down);
             return _hover;
         }