diff --git a/OpenNest.Engine/CuttingPlanning/CuttingPlanBatch.cs b/OpenNest.Engine/CuttingPlanning/CuttingPlanBatch.cs
index e0224b98..cf75f755 100644
--- a/OpenNest.Engine/CuttingPlanning/CuttingPlanBatch.cs
+++ b/OpenNest.Engine/CuttingPlanning/CuttingPlanBatch.cs
@@ -447,6 +447,8 @@ public sealed class CuttingPlanProposal
             Quadrant = source.Quadrant,
             PartSpacing = source.PartSpacing,
             EdgeSpacing = source.EdgeSpacing,
+            // View > Draw Support shows the proposal on the same bed.
+            SupportBed = source.SupportBed,
         };
         // Machine clamps stay visible while inspecting the proposal; zones are immutable.
         foreach (var zone in source.ClampZones)
diff --git a/OpenNest.Tests/CuttingPlanning/ClampZonePreviewTests.cs b/OpenNest.Tests/CuttingPlanning/ClampZonePreviewTests.cs
index 26c1de67..dd4972e8 100644
--- a/OpenNest.Tests/CuttingPlanning/ClampZonePreviewTests.cs
+++ b/OpenNest.Tests/CuttingPlanning/ClampZonePreviewTests.cs
@@ -19,4 +19,17 @@ public class ClampZonePreviewTests
         Assert.Equal(2, preview.ClampZones.Count);
         Assert.Null(preview.ClampRail); // a detached display copy never re-resolves
     }
+
+    [Fact]
+    public void PreviewCarriesThePlatesSupportBed()
+    {
+        var plate = BestEffortCuttingPlanTests.Plate(BestEffortCuttingPlanTests.TouchingContours());
+        plate.SupportBed = new OpenNest.Support.SupportGrid(25, 100, 2, 2, stabilityMargin: 0.1);
+
+        var proposal = CuttingPlanBatch.Capture([plate], ExplicitContourTests.Parameters(), false).Plan();
+        var preview = proposal.BuildPreview(0);
+
+        Assert.NotNull(preview);
+        Assert.Same(plate.SupportBed, preview.SupportBed);
+    }
 }
diff --git a/OpenNest/Controls/PlateView.cs b/OpenNest/Controls/PlateView.cs
index 5a4065d3..3290566f 100644
--- a/OpenNest/Controls/PlateView.cs
+++ b/OpenNest/Controls/PlateView.cs
@@ -771,10 +771,11 @@ namespace OpenNest.Controls
             {
                 renderer.DrawActiveWorkArea(e.Graphics);
                 renderer.DrawDebugRemnants(e.Graphics);
-                if (DrawSupport)
-                    supportOverlay.Draw(e.Graphics, this);
                 DrawOverlapOverlay(e.Graphics);
             }
+            // The support overlay follows the displayed plate, so it shows a proposal's tabbed parts too.
+            if (DrawSupport)
+                supportOverlay.Draw(e.Graphics, this);
             // Plan Cutting marks findings on its proposal as well as on the live plate.
             validationOverlay.Draw(e.Graphics);
             if (!HasProposalDisplay)
diff --git a/OpenNest/Controls/SupportOverlay.cs b/OpenNest/Controls/SupportOverlay.cs
index ac346530..1e314fed 100644
--- a/OpenNest/Controls/SupportOverlay.cs
+++ b/OpenNest/Controls/SupportOverlay.cs
@@ -49,8 +49,10 @@ namespace OpenNest.Controls
             using var supportedPen = new Pen(SupportedColor, 2f);
             using var tippingPen = new Pen(TippingColor, 2f);
             using var tabBrush = new SolidBrush(TabColor);
-            // Tab points keep clear of inside corners as Plan Cutting's do.
-            var clearance = SupportAnalyzer.InsideCornerClearance(plate.CuttingParameters?.TabConfig?.Size ?? 0);
+            // Tab points keep clear of inside corners as Plan Cutting's do. A proposal preview has no
+            // parameters of its own, so it uses the live plate's.
+            var parameters = plate.CuttingParameters ?? view.Plate?.CuttingParameters;
+            var clearance = SupportAnalyzer.InsideCornerClearance(parameters?.TabConfig?.Size ?? 0);
             foreach (var part in plate.Parts)
             {
                 if (part?.BaseDrawing == null || part.BaseDrawing.IsCutOff)
diff --git a/docs/support-tabs.md b/docs/support-tabs.md
index dfcee7b8..7c85d4ab 100644
--- a/docs/support-tabs.md
+++ b/docs/support-tabs.md
@@ -75,7 +75,8 @@ inside corner. Only when every outline point is too close does the clearance giv
 View > Draw Support shows the grid or the slats, cut off to the sheet (while its points or slats
 are at least 6 pixels apart), each part's
 contacts, and its center of gravity: green when supported, red when it can tip, with an orange
-diamond on a red part's best tab point (keeping the plate's tab-size clearance).
+diamond on a red part's best tab point (keeping the plate's tab-size clearance). While Plan
+Cutting inspects a proposal, the overlay shows the proposal's parts on the same bed.
 
 ## Support tabs in Plan Cutting