diff --git a/McBitFont/Form1.Designer.cs b/McBitFont/Form1.Designer.cs
index 3fc093c..5ff321b 100644
--- a/McBitFont/Form1.Designer.cs
+++ b/McBitFont/Form1.Designer.cs
@@ -62,6 +62,8 @@
             prependSymbolToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             appendSymbolToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             removeSymbolToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            removeBeforeToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
+            removeAfterToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             applyToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             toolsToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             ClearToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
@@ -461,7 +463,7 @@
             // 
             // editToolStripMenuItem
             // 
-            editToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { copyToolStripMenuItem, pasteToolStripMenuItem, prependSymbolToolStripMenuItem, appendSymbolToolStripMenuItem, removeSymbolToolStripMenuItem, applyToolStripMenuItem });
+            editToolStripMenuItem.DropDownItems.AddRange(new System.Windows.Forms.ToolStripItem[] { copyToolStripMenuItem, pasteToolStripMenuItem, prependSymbolToolStripMenuItem, appendSymbolToolStripMenuItem, removeSymbolToolStripMenuItem, removeBeforeToolStripMenuItem, removeAfterToolStripMenuItem, applyToolStripMenuItem });
             editToolStripMenuItem.Name = "editToolStripMenuItem";
             editToolStripMenuItem.Size = new System.Drawing.Size(39, 20);
             editToolStripMenuItem.Text = "Edit";
@@ -473,7 +475,7 @@
             copyToolStripMenuItem.Name = "copyToolStripMenuItem";
             copyToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+C";
             copyToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.C;
-            copyToolStripMenuItem.Size = new System.Drawing.Size(212, 22);
+            copyToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
             copyToolStripMenuItem.Text = "Copy";
             copyToolStripMenuItem.Click += copyToolStripMenuItem_Click;
             // 
@@ -484,7 +486,7 @@
             pasteToolStripMenuItem.Name = "pasteToolStripMenuItem";
             pasteToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+V";
             pasteToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.V;
-            pasteToolStripMenuItem.Size = new System.Drawing.Size(212, 22);
+            pasteToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
             pasteToolStripMenuItem.Text = "Paste";
             pasteToolStripMenuItem.Click += pasteToolStripMenuItem_Click;
             // 
@@ -495,7 +497,7 @@
             prependSymbolToolStripMenuItem.Name = "prependSymbolToolStripMenuItem";
             prependSymbolToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+Ins";
             prependSymbolToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Insert;
-            prependSymbolToolStripMenuItem.Size = new System.Drawing.Size(212, 22);
+            prependSymbolToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
             prependSymbolToolStripMenuItem.Text = "Prepend symbol";
             prependSymbolToolStripMenuItem.Click += prependSymbolToolStripMenuItem_Click;
             // 
@@ -506,7 +508,7 @@
             appendSymbolToolStripMenuItem.Name = "appendSymbolToolStripMenuItem";
             appendSymbolToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+End";
             appendSymbolToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.End;
-            appendSymbolToolStripMenuItem.Size = new System.Drawing.Size(212, 22);
+            appendSymbolToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
             appendSymbolToolStripMenuItem.Text = "Append symbol";
             appendSymbolToolStripMenuItem.Click += prependSymbolToolStripMenuItem_Click;
             // 
@@ -517,17 +519,35 @@
             removeSymbolToolStripMenuItem.Name = "removeSymbolToolStripMenuItem";
             removeSymbolToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+Del";
             removeSymbolToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Delete;
-            removeSymbolToolStripMenuItem.Size = new System.Drawing.Size(212, 22);
+            removeSymbolToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
             removeSymbolToolStripMenuItem.Text = "Remove symbol";
             removeSymbolToolStripMenuItem.Click += removeSymbolToolStripMenuItem_Click;
             // 
+            // removeBeforeToolStripMenuItem
+            // 
+            removeBeforeToolStripMenuItem.Enabled = false;
+            removeBeforeToolStripMenuItem.Image = Properties.Resources.action_remove;
+            removeBeforeToolStripMenuItem.Name = "removeBeforeToolStripMenuItem";
+            removeBeforeToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
+            removeBeforeToolStripMenuItem.Text = "Remove all before selected";
+            removeBeforeToolStripMenuItem.Click += removeBeforeToolStripMenuItem_Click;
+            // 
+            // removeAfterToolStripMenuItem
+            // 
+            removeAfterToolStripMenuItem.Enabled = false;
+            removeAfterToolStripMenuItem.Image = Properties.Resources.action_remove;
+            removeAfterToolStripMenuItem.Name = "removeAfterToolStripMenuItem";
+            removeAfterToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
+            removeAfterToolStripMenuItem.Text = "Remove all after selected";
+            removeAfterToolStripMenuItem.Click += removeAfterToolStripMenuItem_Click;
+            // 
             // applyToolStripMenuItem
             // 
             applyToolStripMenuItem.Image = Properties.Resources.action_check;
             applyToolStripMenuItem.Name = "applyToolStripMenuItem";
             applyToolStripMenuItem.ShortcutKeyDisplayString = "Ctrl+Space";
             applyToolStripMenuItem.ShortcutKeys = System.Windows.Forms.Keys.Control | System.Windows.Forms.Keys.Space;
-            applyToolStripMenuItem.Size = new System.Drawing.Size(212, 22);
+            applyToolStripMenuItem.Size = new System.Drawing.Size(215, 22);
             applyToolStripMenuItem.Text = "Apply";
             applyToolStripMenuItem.Click += button2_Click;
             // 
@@ -786,6 +806,8 @@
         private System.Windows.Forms.ToolStripMenuItem ClearToolStripMenuItem;
         private System.Windows.Forms.CheckBox chkLeftSide;
         private System.Windows.Forms.CheckBox chkTopSide;
+        private System.Windows.Forms.ToolStripMenuItem removeBeforeToolStripMenuItem;
+        private System.Windows.Forms.ToolStripMenuItem removeAfterToolStripMenuItem;
     }
 }
 
diff --git a/McBitFont/Form1.cs b/McBitFont/Form1.cs
index 4ce9f1a..51e5c21 100644
--- a/McBitFont/Form1.cs
+++ b/McBitFont/Form1.cs
@@ -56,7 +56,7 @@ namespace McBitFont {
         public bool monospaced = false;
         bool modified = false;
         bool prjModified = false;
-        public const string version = "1.7";
+        public const string version = "2.0";
         public string prjName = "Untitled";
         public string prjFileName = "";
         public int codepage = 1251;
@@ -72,7 +72,7 @@ namespace McBitFont {
 
         private void Form1_Load(object sender, EventArgs e) {
             lblType.Text = monospaced ? "Monospaced" : "Variable width / Single";
-            dotWidth  = (int)nudX.Value;
+            dotWidth = (int)nudX.Value;
             dotHeight = (int)nudY.Value;
 
             gap = (cellSize < 5) ? 0 : 1;
@@ -106,12 +106,12 @@ namespace McBitFont {
 
         [DllImport("user32.dll")]
         public static extern int SendMessage(IntPtr hWnd, int msg, IntPtr wParam, IntPtr lParam);
-        
+
         public int MakeLong(short lowPart, short highPart) {
             return (int)(((ushort)lowPart) | (uint)(highPart << 16));
         }
 
-        FrameMiniature copyFrame(FrameMiniature frame) { 
+        FrameMiniature copyFrame(FrameMiniature frame) {
             var ff = new FrameMiniature(frame.code, frame.width, frame.height);
             Array.Copy(frame.data, ff.data, frame.data.Length);
             return ff;
@@ -199,9 +199,9 @@ namespace McBitFont {
             ff.width = neww;
             ff.height = newh;
             t = new bool[neww, newh];
-            for (int i=0; i<imax; i++) {
-                for (int j=0;j<jmax; j++) {
-                    if (i+di >= 0 && j+dj >= 0) t[i, j] = ff.data[i + di, j + dj];
+            for (int i = 0; i < imax; i++) {
+                for (int j = 0; j < jmax; j++) {
+                    if (i + di >= 0 && j + dj >= 0) t[i, j] = ff.data[i + di, j + dj];
                 }
             }
             ff.data = t;
@@ -232,7 +232,7 @@ namespace McBitFont {
                 hScroll.Minimum = 0;
                 hScroll.Enabled = true;
             }
-            
+
             if (h <= dotPanel.Height) {
                 vScroll.Enabled = false;
                 vScroll.Value = 0;
@@ -347,7 +347,7 @@ namespace McBitFont {
             bool c;
             for (int i = 0; i < dotWidth; i++) {
                 c = f.data[i, dotHeight - 1];
-                for (int j = dotHeight-1; j >= 0; j--) {
+                for (int j = dotHeight - 1; j >= 0; j--) {
                     if (j == 0) {
                         f.data[i, j] = c;
                     } else {
@@ -448,7 +448,7 @@ namespace McBitFont {
             for (int i = 0; i < m.width; i++) {
                 for (int j = 0; j < m.height; j++) {
                     c = m.data[i, j] ? Color.Black : Color.White;
-                    bmp.SetPixel(i+imin, j+jmin, c);
+                    bmp.SetPixel(i + imin, j + jmin, c);
                 }
             }
             var sizedBMP = new Bitmap(bmp, new Size(50, 50));
@@ -464,19 +464,19 @@ namespace McBitFont {
             Pen p = new Pen(Color.FromArgb(64, Color.Green));
             int x, y;
 
-            for (int i=0; i<dotWidth; i++) {
+            for (int i = 0; i < dotWidth; i++) {
                 x = pixelOffset + i * (cellSize + gap) - hScroll.Value;
                 if (gap > 0 && i != 0 && (i % 8) == 0) {
                     g.DrawLine(p, x - 1, pixelOffset - vScroll.Value, x - 1, h);
                 }
-                for (int j=0; j<dotHeight; j++) {
+                for (int j = 0; j < dotHeight; j++) {
                     y = pixelOffset + j * (cellSize + gap) - vScroll.Value;
                     if (gap > 0 && i == 0 && j != 0 && (j % 8) == 0) {
-                        g.DrawLine(p, pixelOffset - hScroll.Value, y-1, w, y-1);
+                        g.DrawLine(p, pixelOffset - hScroll.Value, y - 1, w, y - 1);
                     }
                     if (f.data[i, j]) sb = sbb;
                     else sb = sbw;
-                    g.FillRectangle(sb, x, (baseline == j ? y+1 : y), cellSize, (baseline == j ? cellSize-1 : cellSize));
+                    g.FillRectangle(sb, x, (baseline == j ? y + 1 : y), cellSize, (baseline == j ? cellSize - 1 : cellSize));
                 }
             }
 
@@ -545,7 +545,7 @@ namespace McBitFont {
                 nudY.Value = newh;
                 FrameMiniature newf;
                 if (form.cbSingle.Checked) {
-                    frames.Add( new FrameMiniature(0, neww, newh));
+                    frames.Add(new FrameMiniature(0, neww, newh));
                     //f = frames.Find(x => x.code == 0);
                     append = "Single";
                     monospaced = false;
@@ -557,20 +557,20 @@ namespace McBitFont {
                     } else {
                         if (form.cbNotPrintable.Checked) imin = 0;
                         else if (form.cbLatin.Checked) imin = 32;
-                        else  imin = 128;
+                        else imin = 128;
 
                         if (form.cbExtended.Checked) imax = 255;
                         else if (form.cbLatin.Checked) imax = 127;
                         else imax = 31;
                     }
 
-                    
+
                     for (i = imin; i <= imax; i++) {
                         newf = new FrameMiniature(i, neww, newh);
                         if (form.cbFontBased.Checked) newf = fillFrame(newf, form.dlgFont.Font, (int)form.nudShiftX.Value, (int)form.nudShiftY.Value);
                         frames.Add(newf);
                     }
-                    
+
                     monospaced = form.rbMono.Checked;
                 }
                 lblType.Text = monospaced ? "Monospaced" : "Variable width / Single";
@@ -579,7 +579,7 @@ namespace McBitFont {
                     var s = ff.code.ToString().PadLeft(3, '0');
                     ilMiniatures.Images.Add(s, (Image)getMiniPictue(ff));
                     var sss = decodeSymbol(ff.code);
-                    miniList.Items.Add(s, s+' '+append+sss, s);
+                    miniList.Items.Add(s, s + ' ' + append + sss, s);
                 }
                 f = copyFrame(frames.First());
                 dotPanel.Refresh();
@@ -603,6 +603,8 @@ namespace McBitFont {
             checkModifiedFrame();
             if (miniList.SelectedItems.Count == 0) {
                 removeSymbolToolStripMenuItem.Enabled = false;
+                removeBeforeToolStripMenuItem.Enabled = false;
+                removeAfterToolStripMenuItem.Enabled = false;
                 copyToolStripMenuItem.Enabled = false;
                 pasteToolStripMenuItem.Enabled = false;
                 return;
@@ -622,6 +624,17 @@ namespace McBitFont {
                 removeSymbolToolStripMenuItem.Enabled = false;
             }
             copyToolStripMenuItem.Enabled = true;
+            if (ff.Equals(frames.First())) {
+                removeBeforeToolStripMenuItem.Enabled = false;
+                removeAfterToolStripMenuItem.Enabled = true;
+            } else if (ff.Equals(frames.Last())) {
+                removeBeforeToolStripMenuItem.Enabled = true;
+                removeAfterToolStripMenuItem.Enabled = false;
+            } else {
+                removeBeforeToolStripMenuItem.Enabled = true;
+                removeAfterToolStripMenuItem.Enabled = true;
+            }
+
             if (fbuffer) pasteToolStripMenuItem.Enabled = true;
             else pasteToolStripMenuItem.Enabled = false;
         }
@@ -724,7 +737,7 @@ namespace McBitFont {
                 ff = new FrameMiniature(frames.Last().code + 1, dotWidth, dotHeight);
                 frames.Add(ff);
             }
-            
+
             var s = ff.code.ToString().PadLeft(3, '0');
             ilMiniatures.Images.Add(s, (Image)getMiniPictue(ff));
             var sss = decodeSymbol(ff.code);
@@ -755,11 +768,11 @@ namespace McBitFont {
                 Array.Copy(fbuf.data, f.data, fbuf.data.Length);
             } else {
                 var wmax = (fbuf.width > f.width) ? f.width : fbuf.width;
-                var hmax = (fbuf.height >  f.height) ? f.height : fbuf.height;
+                var hmax = (fbuf.height > f.height) ? f.height : fbuf.height;
 
                 for (int i = 0; i < wmax; i++) {
                     for (int j = 0; j < hmax; j++) {
-                        f.data[i,j] = fbuf.data[i,j];
+                        f.data[i, j] = fbuf.data[i, j];
                     }
                 }
             }
@@ -794,7 +807,7 @@ namespace McBitFont {
                 checkModifiedFrame();
                 saveProject(prjFileName);
             }
-            
+
         }
 
         private void btnClear_Click(object sender, EventArgs e) {
@@ -817,5 +830,35 @@ namespace McBitFont {
             dotPanel.Refresh();
         }
 
+        // Remove all before or after specified symbol
+        private void removeBA(bool before) {
+            if (miniList.SelectedItems.Count == 0) {
+                removeBeforeToolStripMenuItem.Enabled = false;
+                removeAfterToolStripMenuItem.Enabled = false;
+                return;
+            }
+            int step = before ? -1 : 1;
+            var sel = miniList.SelectedItems[0].ImageKey;
+            int code = Convert.ToInt32(sel);
+            int findex;
+
+            while (miniList.Items.ContainsKey((code + step).ToString().PadLeft(3, '0'))) {
+                code += step;
+                findex = frames.FindIndex(x => x.code == code);
+                frames.RemoveAt(findex);
+                miniList.Items.RemoveByKey(code.ToString().PadLeft(3, '0'));
+            }
+            //dotPanel.Refresh();
+            miniList.Refresh();
+            prjModified = true;
+        }
+
+        private void removeBeforeToolStripMenuItem_Click(object sender, EventArgs e) {
+            removeBA(true);
+        }
+
+        private void removeAfterToolStripMenuItem_Click(object sender, EventArgs e) {
+            removeBA(false);
+        }
     }
 }
diff --git a/McBitFont/McBitFont.csproj b/McBitFont/McBitFont.csproj
index 9ea1967..be1b34e 100644
--- a/McBitFont/McBitFont.csproj
+++ b/McBitFont/McBitFont.csproj
@@ -20,6 +20,8 @@
     <UseWindowsForms>true</UseWindowsForms>
     <ImportWindowsDesktopTargets>true</ImportWindowsDesktopTargets>
     <ApplicationIcon>icon_64.ico</ApplicationIcon>
+    <AssemblyVersion>2.0.0.0</AssemblyVersion>
+    <FileVersion>2.0.0.0</FileVersion>
   </PropertyGroup>
   <ItemGroup>
     <Content Include="icon.ico" />
diff --git a/TODO.txt b/TODO.txt
index 9044326..b52b3f5 100644
--- a/TODO.txt
+++ b/TODO.txt
@@ -1,8 +1,9 @@
 Application:
+V Migrate from .Net Framework 4.7 to .NET 9
 
 Functionality:
 - Context menu in symbol navigator
-- Delete symbols before/after selected
+V Delete symbols before/after selected
 - Shift all symbols on code line (change symbol codes)
 - Specify starting code (extends the shift)
 - Ability to make monospaced font a variable width one