tastudio: arrow keys start making sense.

up/down - scroll tasview.
ctrl-up/down - move selection.
shift-up/down - append selection.
removed ctrl-shift-R, duplicate of ctrl-shift-F.

BizHawk.Client.EmuHawk/CustomControls/InputRoll.cs

@@ -44,6 +44,7 @@ namespace BizHawk.Client.EmuHawk
 		public bool denoteMarkersWithIcons { get; set; }
 		public bool denoteMarkersWithBGColor { get; set; }
 		public bool allowRightClickSelecton { get; set; }
+		public bool letKeysModifySelection { get; set; }
 
 		private IntPtr RotatedFont;
 		private readonly Font NormalFont;
@@ -1294,6 +1295,58 @@ namespace BizHawk.Client.EmuHawk
 				LastVisibleRow = RowCount;
 				Refresh();
 			}
+			else if (e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Up) // Ctrl + Up
+			{
+				if (SelectedRows.Any() && letKeysModifySelection)
+				{
+					foreach (var row in SelectedRows.ToList())
+					{
+						SelectRow(row - 1, true);
+						SelectRow(row, false);
+					}
+				}
+			}
+			else if (e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Down) // Ctrl + Down
+			{
+				if (SelectedRows.Any() && letKeysModifySelection)
+				{
+					foreach (var row in SelectedRows.Reverse().ToList())
+					{
+						SelectRow(row + 1, true);
+						SelectRow(row, false);
+					}
+				}
+			}
+			else if (!e.Control && e.Shift && !e.Alt && e.KeyCode == Keys.Up) // Shift + Up
+			{
+				if (SelectedRows.Any() && letKeysModifySelection)
+				{
+					SelectRow(SelectedRows.First() - 1, true);
+				}
+			}
+			else if (!e.Control && e.Shift && !e.Alt && e.KeyCode == Keys.Down) // Shift + Down
+			{
+				if (SelectedRows.Any() && letKeysModifySelection)
+				{
+					SelectRow(SelectedRows.Last() + 1, true);
+				}
+			}
+			else if (!e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Up) // Up
+			{
+				if (FirstVisibleRow > 0)
+				{
+					FirstVisibleRow--;
+					Refresh();
+				}
+			}
+			else if (!e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Down) // Down
+			{
+				if (FirstVisibleRow < RowCount - 1)
+				{
+					FirstVisibleRow++;
+					Refresh();
+				}
+			}
 
 			base.OnKeyDown(e);
 		}

BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.Designer.cs

@@ -1126,6 +1126,7 @@ namespace BizHawk.Client.EmuHawk
 			this.TasView.denoteStatesWithBGColor = false;
 			this.TasView.denoteStatesWithIcons = false;
 			this.TasView.allowRightClickSelecton = false;
+			this.TasView.letKeysModifySelection = true;
 			this.TasView.Font = new System.Drawing.Font("Courier New", 8.25F, System.Drawing.FontStyle.Regular, System.Drawing.GraphicsUnit.Point, ((byte)(0)));
 			this.TasView.FullRowSelect = true;
 			this.TasView.HideWasLagFrames = false;

BizHawk.Client.EmuHawk/tools/TAStudio/TAStudio.ListView.cs

@@ -855,22 +855,10 @@ namespace BizHawk.Client.EmuHawk
 			{
 				GoToPreviousMarker();
 			}
-			else if (e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Right) // Ctrl + Left
+			else if (e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Right) // Ctrl + Right
 			{
 				GoToNextMarker();
 			}
-			else if (e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Up) // Ctrl + Up
-			{
-				GoToPreviousFrame();
-			}
-			else if (e.Control && !e.Shift && !e.Alt && e.KeyCode == Keys.Down) // Ctrl + Down
-			{
-				GoToNextFrame();
-			}
-			else if (e.Control && !e.Alt && e.Shift && e.KeyCode == Keys.R) // Ctrl + Shift + R
-			{
-				TasView.HorizontalOrientation ^= true;
-			}
 
 			// SuuperW: Float Editing
 			if (_floatEditRow != -1)