diff --git a/OpenNest.WinForms.Tests/Forms/DrawingSetFormsTests.cs b/OpenNest.WinForms.Tests/Forms/DrawingSetFormsTests.cs
index 5984d4b9..78469991 100644
--- a/OpenNest.WinForms.Tests/Forms/DrawingSetFormsTests.cs
+++ b/OpenNest.WinForms.Tests/Forms/DrawingSetFormsTests.cs
@@ -322,7 +322,7 @@ public class DrawingSetFormsTests
     }
 
     [Fact]
-    public void Editor_EditsQuantityOrderAndMembers_AndAsksBeforeDiscarding()
+    public void Editor_EditsQuantityAndMembers_KeepsTheirOrder_AndAsksBeforeDiscarding()
     {
         StaTestThread.Run(
             () =>
@@ -358,9 +358,10 @@ public class DrawingSetFormsTests
                 grid.EditingControl!.Text = "12";
                 Assert.True(grid.EndEdit());
                 Assert.Equal("", grid.Rows[0].ErrorText);
-                grid.CurrentCell = grid.Rows[2].Cells["drawingColumn"];
-                Field<Button>(editor, "upButton").PerformClick();
-                grid.CurrentCell = grid.Rows[2].Cells["drawingColumn"];
+                // Member order changes nothing a release makes, so there is no Move Up/Down.
+                Assert.Null(typeof(EditDrawingSetForm).GetField("upButton", BindingFlags.Instance | BindingFlags.NonPublic));
+                Assert.Null(typeof(EditDrawingSetForm).GetField("downButton", BindingFlags.Instance | BindingFlags.NonPublic));
+                grid.CurrentCell = grid.Rows[1].Cells["drawingColumn"];
                 Field<Button>(editor, "removeButton").PerformClick();
                 Assert.True(save.Enabled);
 
@@ -415,7 +416,7 @@ public class DrawingSetFormsTests
 
                 var edit = Assert.Single(edits);
                 Assert.Equal((a.Id, 2, "Newer notes"), (edit.Listed.Id, edit.Listed.Revision, edit.Listed.Notes));
-                Assert.Equal("Synthetic Aluminum", grid.Rows[0].Cells["materialColumn"].Value);
+                Assert.Equal("Synthetic Aluminum Grade A 0.125 in", grid.Rows[0].Cells["materialColumn"].Value);
                 Assert.Equal("", grid.Rows[0].Cells["warningColumn"].Value);
                 Assert.Contains("revision 3", Field<Label>(editor, "statusLabel").Text);
                 // Members are listed by id, so the set has nothing new to save.
@@ -425,6 +426,58 @@ public class DrawingSetFormsTests
             "The set editor edit drawing test did not complete.");
     }
 
+    [Fact]
+    public void Editor_ShowsMaterialInOneColumn_AndCutTypeOnlyWhenMixed()
+    {
+        StaTestThread.Run(
+            () =>
+            {
+                var library = new FakeLibrary();
+                var a = library.Add("SYN-A", "Synthetic Steel", 0.25);
+                var b = library.Add("SYN-B", "", 0);
+                var c = library.Add("SYN-C", "Synthetic Steel", 6);
+                c.MaterialGrade = "";
+                c.Units = Units.Millimeters;
+                c.CutType = CutType.Waterjet;
+                var sets = new InMemoryDrawingSets();
+                var created = Run(sets.CreateAsync(new DrawingSetRecord
+                {
+                    Id = Guid.NewGuid(),
+                    Name = "Synthetic kit",
+                    Members = new[] { a, b }.Select(d => new DrawingSetMember { DrawingId = d.Id, Quantity = 1, Drawing = d }).ToList(),
+                }));
+
+                using var editor = new EditDrawingSetForm(new DrawingSetEditSession(sets, created, "Synthetic operator"), library, Server);
+                editor.ShowMessage = (text, _, _) => throw new Xunit.Sdk.XunitException(text);
+                editor.Show();
+                var grid = Field<DataGridView>(editor, "memberGrid");
+
+                Assert.Equal(new[] { "drawingColumn", "materialColumn", "quantityColumn", "warningColumn" },
+                    grid.Columns.Cast<DataGridViewColumn>().Where(col => col.Visible).OrderBy(col => col.DisplayIndex).Select(col => col.Name));
+                Assert.Equal("Synthetic Steel Grade A 0.25 in", grid.Rows[0].Cells["materialColumn"].Value);
+                // Grade A alone: no material name or thickness to show.
+                Assert.Equal("Grade A", grid.Rows[1].Cells["materialColumn"].Value);
+                Assert.Equal("Qty", grid.Columns["quantityColumn"].HeaderText);
+
+                // Another cut type in the set brings the column back.
+                var libraryGrid = Field<DataGridView>(editor, "libraryGrid");
+                PumpUntil(() => libraryGrid.Rows.Count == 3, "the editor's library pane");
+                libraryGrid.ClearSelection();
+                libraryGrid.Rows[2].Selected = true;
+                editor.AddSelectedDrawings();
+                Assert.Equal(3, grid.Rows.Count);
+                Assert.True(grid.Columns["cutTypeColumn"].Visible);
+                Assert.Equal("Synthetic Steel 6 mm", grid.Rows[2].Cells["materialColumn"].Value);
+                Assert.Equal("Waterjet", grid.Rows[2].Cells["cutTypeColumn"].Value);
+
+                grid.CurrentCell = grid.Rows[2].Cells["drawingColumn"];
+                Field<Button>(editor, "removeButton").PerformClick();
+                Assert.False(grid.Columns["cutTypeColumn"].Visible);
+            },
+            TestTimeout,
+            "The set editor columns test did not complete.");
+    }
+
     [Fact]
     public void History_ListsRevisionsNewestFirst_AndTheSelectedRevisionsMembers()
     {
diff --git a/OpenNest/Forms/EditDrawingSetForm.Designer.cs b/OpenNest/Forms/EditDrawingSetForm.Designer.cs
index bae93a29..82b2f8ee 100644
--- a/OpenNest/Forms/EditDrawingSetForm.Designer.cs
+++ b/OpenNest/Forms/EditDrawingSetForm.Designer.cs
@@ -18,7 +18,6 @@ namespace OpenNest.Forms
         private void InitializeComponent()
         {
             components = new System.ComponentModel.Container();
-            System.Windows.Forms.DataGridViewCellStyle rightAligned = new System.Windows.Forms.DataGridViewCellStyle();
             System.Windows.Forms.DataGridViewCellStyle quantityStyle = new System.Windows.Forms.DataGridViewCellStyle();
             System.Windows.Forms.DataGridViewCellStyle libraryRightAligned = new System.Windows.Forms.DataGridViewCellStyle();
             layoutTable = new System.Windows.Forms.TableLayoutPanel();
@@ -52,17 +51,12 @@ namespace OpenNest.Forms
             memberGrid = new System.Windows.Forms.DataGridView();
             drawingColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
             materialColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
-            gradeColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
-            thicknessColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
-            unitsColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
             cutTypeColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
             quantityColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
             warningColumn = new System.Windows.Forms.DataGridViewTextBoxColumn();
             memberButtons = new System.Windows.Forms.FlowLayoutPanel();
             editDrawingButton = new System.Windows.Forms.Button();
             removeButton = new System.Windows.Forms.Button();
-            upButton = new System.Windows.Forms.Button();
-            downButton = new System.Windows.Forms.Button();
             bottomTable = new System.Windows.Forms.TableLayoutPanel();
             summaryLabel = new System.Windows.Forms.Label();
             historyButton = new System.Windows.Forms.Button();
@@ -109,7 +103,7 @@ namespace OpenNest.Forms
             layoutTable.RowStyles.Add(new System.Windows.Forms.RowStyle(System.Windows.Forms.SizeType.Percent, 100F));
             layoutTable.RowStyles.Add(new System.Windows.Forms.RowStyle());
             layoutTable.RowStyles.Add(new System.Windows.Forms.RowStyle());
-            layoutTable.Size = new System.Drawing.Size(1264, 641);
+            layoutTable.Size = new System.Drawing.Size(1040, 641);
             layoutTable.TabIndex = 0;
             //
             // detailsTable
@@ -193,11 +187,11 @@ namespace OpenNest.Forms
             splitContainer.Name = "splitContainer";
             splitContainer.Panel1.Controls.Add(libraryGroup);
             splitContainer.Panel2.Controls.Add(memberGroup);
-            splitContainer.Size = new System.Drawing.Size(1248, 470);
-            splitContainer.SplitterDistance = 450;
+            splitContainer.Size = new System.Drawing.Size(1024, 470);
+            splitContainer.SplitterDistance = 440;
             splitContainer.SplitterWidth = 6;
             splitContainer.Panel1MinSize = 320;
-            splitContainer.Panel2MinSize = 420;
+            splitContainer.Panel2MinSize = 380;
             splitContainer.TabIndex = 1;
             //
             // libraryGroup
@@ -424,7 +418,7 @@ namespace OpenNest.Forms
             memberGrid.AllowUserToDeleteRows = false;
             memberGrid.AllowUserToOrderColumns = false;
             memberGrid.ContextMenuStrip = memberMenu;
-            memberGrid.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] { drawingColumn, materialColumn, gradeColumn, thicknessColumn, unitsColumn, cutTypeColumn, quantityColumn, warningColumn });
+            memberGrid.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] { drawingColumn, materialColumn, cutTypeColumn, quantityColumn, warningColumn });
             memberGrid.Dock = System.Windows.Forms.DockStyle.Fill;
             memberGrid.EditMode = System.Windows.Forms.DataGridViewEditMode.EditOnKeystrokeOrF2;
             memberGrid.Margin = new System.Windows.Forms.Padding(0);
@@ -447,7 +441,7 @@ namespace OpenNest.Forms
             drawingColumn.Name = "drawingColumn";
             drawingColumn.ReadOnly = true;
             drawingColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
-            drawingColumn.Width = 150;
+            drawingColumn.Width = 140;
             //
             // materialColumn
             //
@@ -455,33 +449,8 @@ namespace OpenNest.Forms
             materialColumn.Name = "materialColumn";
             materialColumn.ReadOnly = true;
             materialColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
-            materialColumn.Width = 100;
-            //
-            // gradeColumn
-            //
-            gradeColumn.HeaderText = "Grade";
-            gradeColumn.Name = "gradeColumn";
-            gradeColumn.ReadOnly = true;
-            gradeColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
-            gradeColumn.Width = 60;
-            //
-            // thicknessColumn
-            //
-            rightAligned.Alignment = System.Windows.Forms.DataGridViewContentAlignment.MiddleRight;
-            thicknessColumn.DefaultCellStyle = rightAligned;
-            thicknessColumn.HeaderText = "Thickness";
-            thicknessColumn.Name = "thicknessColumn";
-            thicknessColumn.ReadOnly = true;
-            thicknessColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
-            thicknessColumn.Width = 70;
-            //
-            // unitsColumn
-            //
-            unitsColumn.HeaderText = "Units";
-            unitsColumn.Name = "unitsColumn";
-            unitsColumn.ReadOnly = true;
-            unitsColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
-            unitsColumn.Width = 50;
+            materialColumn.ToolTipText = "Material, grade, thickness and units";
+            materialColumn.Width = 150;
             //
             // cutTypeColumn
             //
@@ -489,6 +458,8 @@ namespace OpenNest.Forms
             cutTypeColumn.Name = "cutTypeColumn";
             cutTypeColumn.ReadOnly = true;
             cutTypeColumn.SortMode = System.Windows.Forms.DataGridViewColumnSortMode.NotSortable;
+            cutTypeColumn.ToolTipText = "Shown when the set mixes cut types";
+            cutTypeColumn.Visible = false;
             cutTypeColumn.Width = 65;
             //
             // quantityColumn
@@ -517,8 +488,6 @@ namespace OpenNest.Forms
             memberButtons.AutoSize = true;
             memberButtons.Controls.Add(editDrawingButton);
             memberButtons.Controls.Add(removeButton);
-            memberButtons.Controls.Add(upButton);
-            memberButtons.Controls.Add(downButton);
             memberButtons.Dock = System.Windows.Forms.DockStyle.Fill;
             memberButtons.FlowDirection = System.Windows.Forms.FlowDirection.TopDown;
             memberButtons.Margin = new System.Windows.Forms.Padding(6, 0, 0, 0);
@@ -540,7 +509,7 @@ namespace OpenNest.Forms
             // removeButton
             //
             removeButton.Enabled = false;
-            removeButton.Margin = new System.Windows.Forms.Padding(0, 0, 0, 3);
+            removeButton.Margin = new System.Windows.Forms.Padding(0);
             removeButton.Name = "removeButton";
             removeButton.Size = new System.Drawing.Size(100, 28);
             removeButton.TabIndex = 1;
@@ -548,28 +517,6 @@ namespace OpenNest.Forms
             removeButton.UseVisualStyleBackColor = true;
             removeButton.Click += RemoveButton_Click;
             //
-            // upButton
-            //
-            upButton.Enabled = false;
-            upButton.Margin = new System.Windows.Forms.Padding(0, 12, 0, 3);
-            upButton.Name = "upButton";
-            upButton.Size = new System.Drawing.Size(100, 28);
-            upButton.TabIndex = 2;
-            upButton.Text = "Move Up";
-            upButton.UseVisualStyleBackColor = true;
-            upButton.Click += UpButton_Click;
-            //
-            // downButton
-            //
-            downButton.Enabled = false;
-            downButton.Margin = new System.Windows.Forms.Padding(0, 0, 0, 3);
-            downButton.Name = "downButton";
-            downButton.Size = new System.Drawing.Size(100, 28);
-            downButton.TabIndex = 3;
-            downButton.Text = "Move Down";
-            downButton.UseVisualStyleBackColor = true;
-            downButton.Click += DownButton_Click;
-            //
             // bottomTable
             //
             bottomTable.AutoSize = true;
@@ -662,11 +609,11 @@ namespace OpenNest.Forms
             //
             AutoScaleMode = System.Windows.Forms.AutoScaleMode.None;
             CancelButton = cancelButton;
-            ClientSize = new System.Drawing.Size(1264, 641);
+            ClientSize = new System.Drawing.Size(1040, 641);
             Controls.Add(layoutTable);
             Font = new System.Drawing.Font("Segoe UI", 9.75F);
             MinimizeBox = false;
-            MinimumSize = new System.Drawing.Size(1000, 480);
+            MinimumSize = new System.Drawing.Size(840, 480);
             Name = "EditDrawingSetForm";
             ShowIcon = false;
             ShowInTaskbar = false;
@@ -733,16 +680,11 @@ namespace OpenNest.Forms
         private System.Windows.Forms.DataGridView memberGrid;
         private System.Windows.Forms.DataGridViewTextBoxColumn drawingColumn;
         private System.Windows.Forms.DataGridViewTextBoxColumn materialColumn;
-        private System.Windows.Forms.DataGridViewTextBoxColumn gradeColumn;
-        private System.Windows.Forms.DataGridViewTextBoxColumn thicknessColumn;
-        private System.Windows.Forms.DataGridViewTextBoxColumn unitsColumn;
         private System.Windows.Forms.DataGridViewTextBoxColumn cutTypeColumn;
         private System.Windows.Forms.DataGridViewTextBoxColumn quantityColumn;
         private System.Windows.Forms.DataGridViewTextBoxColumn warningColumn;
         private System.Windows.Forms.FlowLayoutPanel memberButtons;
         private System.Windows.Forms.Button removeButton;
-        private System.Windows.Forms.Button upButton;
-        private System.Windows.Forms.Button downButton;
         private System.Windows.Forms.TableLayoutPanel bottomTable;
         private System.Windows.Forms.Label summaryLabel;
         private System.Windows.Forms.Button historyButton;
diff --git a/OpenNest/Forms/EditDrawingSetForm.cs b/OpenNest/Forms/EditDrawingSetForm.cs
index 5fea9c1d..026d7ee0 100644
--- a/OpenNest/Forms/EditDrawingSetForm.cs
+++ b/OpenNest/Forms/EditDrawingSetForm.cs
@@ -14,7 +14,7 @@ namespace OpenNest.Forms
 {
     /// <summary>
     /// Creates or edits one drawing set through <see cref="DrawingSetEditSession"/>: name,
-    /// customer, notes and the ordered members with a quantity each. The drawing library is
+    /// customer, notes and the members with a quantity each. The drawing library is
     /// browsed in the left pane (every active drawing, a page at a time through
     /// <see cref="DrawingLibraryBrowseSession"/>); Add to Set, a double-click or Enter adds the
     /// selected drawings at the entered quantity, and a drawing already in the set is greyed
@@ -22,7 +22,8 @@ namespace OpenNest.Forms
     /// the button) reads the member's current library record and edits its details there, so
     /// a drawing without a material or thickness can be fixed in place. History lists a saved
     /// set's revisions. Saving adds a revision on the server, guarded by the revision the set
-    /// was read at.
+    /// was read at. Members keep the order they were added in: nothing a release makes depends
+    /// on it (materials are grouped and sorted, nests list drawings by name), so it is not edited.
     /// </summary>
     public partial class EditDrawingSetForm : Form
     {
@@ -131,7 +132,7 @@ namespace OpenNest.Forms
             e.Cancel = true;
         }
 
-        // A programmatic EndEdit (Save, Remove, Move) commits without validating, so check again.
+        // A programmatic EndEdit (Save, Remove, Edit Drawing) commits without validating, so check again.
         private void MemberGrid_CellEndEdit(object sender, DataGridViewCellEventArgs e)
         {
             if (e.ColumnIndex != quantityColumn.Index)
@@ -309,19 +310,6 @@ namespace OpenNest.Forms
                 Populate(index);
         }
 
-        private void UpButton_Click(object sender, EventArgs e) => MoveSelected(-1);
-
-        private void DownButton_Click(object sender, EventArgs e) => MoveSelected(1);
-
-        private void MoveSelected(int offset)
-        {
-            var index = SelectedIndex();
-            if (index < 0 || !memberGrid.EndEdit() || !session.Move(index, offset))
-                return;
-            Populate(index + offset);
-            UpdateCommands();
-        }
-
         /// <summary>
         /// Adds the drawings selected in the library pane, in list order, at the entered
         /// quantity, skipping those already in the set.
@@ -446,19 +434,21 @@ namespace OpenNest.Forms
         private void Populate(int select)
         {
             memberGrid.Rows.Clear();
+            // Most sets are cut one way; the column appears only when the cut type tells members apart.
+            cutTypeColumn.Visible = session.Members
+                .Where(m => m.Drawing != null).Select(m => m.Drawing.CutType).Distinct().Skip(1).Any();
             foreach (var member in session.Members)
             {
                 var drawing = member.Drawing;
                 var index = memberGrid.Rows.Add(
                     drawing?.Name ?? member.DrawingId.ToString(),
-                    drawing?.MaterialName ?? "",
-                    drawing?.MaterialGrade ?? "",
-                    drawing == null ? "" : drawing.Thickness.ToString("0.####", CultureInfo.CurrentCulture),
-                    drawing?.Units.ToString() ?? "",
+                    MaterialText(drawing),
                     drawing?.CutType.ToString() ?? "",
                     member.Quantity,
                     Warning(drawing));
-                memberGrid.Rows[index].Tag = member;
+                var row = memberGrid.Rows[index];
+                row.Tag = member;
+                row.Cells[warningColumn.Index].ToolTipText = (string)row.Cells[warningColumn.Index].Value;
             }
 
             if (select >= 0 && select < memberGrid.Rows.Count)
@@ -473,6 +463,18 @@ namespace OpenNest.Forms
                 : $"{session.Members.Count:N0} drawing{(session.Members.Count == 1 ? "" : "s")}, {parts:N0} part{(parts == 1 ? "" : "s")} per set";
         }
 
+        /// <summary>Material, grade, thickness and units in one line, such as "Steel A36 0.25 in".</summary>
+        internal static string MaterialText(DrawingLibraryRecord drawing)
+        {
+            if (drawing == null)
+                return "";
+            var thickness = drawing.Thickness > 0
+                ? $"{drawing.Thickness.ToString("0.####", CultureInfo.CurrentCulture)} {UnitsHelper.GetShortString(drawing.Units)}"
+                : "";
+            return string.Join(" ", new[] { drawing.MaterialName, drawing.MaterialGrade, thickness }
+                .Where(s => !string.IsNullOrWhiteSpace(s)).Select(s => s.Trim()));
+        }
+
         private static string Warning(DrawingLibraryRecord drawing)
         {
             if (drawing == null)
@@ -493,8 +495,6 @@ namespace OpenNest.Forms
             UpdateAddCommand();
             editDrawingButton.Enabled = !saving && !editing && index >= 0;
             removeButton.Enabled = !saving && index >= 0;
-            upButton.Enabled = !saving && index > 0;
-            downButton.Enabled = !saving && index >= 0 && index < session.Members.Count - 1;
             saveButton.Enabled = !saving && error == null && session.IsChanged;
             if (!saving)
                 statusLabel.Text = error == null ? "" : char.ToUpper(error[0], CultureInfo.CurrentCulture) + error[1..];
diff --git a/docs/nest-storage.md b/docs/nest-storage.md
index 2ec046d8..bf6dc9b7 100644
--- a/docs/nest-storage.md
+++ b/docs/nest-storage.md
@@ -414,16 +414,21 @@ a set shows its notes.
 
 - **New Set...** and **Edit...** open the set editor
   (`OpenNest.Data.DrawingSetEditSession`): name, customer, notes and the member
-  grid (drawing, material, grade, thickness, units, cut type, quantity, note).
+  grid: drawing, material (name, grade, thickness and units in one column, such
+  as "Steel A36 0.25 in"), quantity per set and a note. A cut type column
+  appears only when the set mixes cut types.
   The editor's left pane browses the library in place, with no second dialog:
   every active drawing (never filtered to a nest), searched, sorted and paged
   like the Drawing Library dialog. Select one or several and choose **Add to Set**,
   double-click or press Enter to add them at the entered **Qty per set**.
   Drawings already in the set are greyed; one picked again is skipped and
   named, so there is one member per drawing. Quantities are edited
-  in the grid (1 to 100,000); **Remove**, **Move Up** and **Move Down** change
-  the list. The note column flags drawings archived in the library (skipped on
-  release unless included) and drawings with no material or thickness (cannot be
+  in the grid (1 to 100,000) and **Remove** drops a member. Members stay in
+  the order they were added (and stored in that order); nothing a release
+  makes depends on it, since materials are grouped and sorted and nests list
+  drawings by name, so the editor has no Move Up/Down. Drag the divider to
+  widen the library pane. The note column flags drawings archived in the
+  library (skipped on release unless included) and drawings with no material or thickness (cannot be
   released until set; double-click to open
   [Edit Drawing](#edit-drawing-desktop)).
 - **Save** adds a revision guarded by the revision the set was read at; a 409 is