diff --git a/BUILD.md b/BUILD.md
index 55f42f1..9957f98 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -27,11 +27,12 @@ cd /xxiivv/Nataniev/public/public.projects/builds/
 ~/butler push /xxiivv/Nataniev/public/public.projects/builds/Dotgrid-win32-x64/ hundredrabbits/dotgrid:windows-64
 ~/butler push /xxiivv/Nataniev/public/public.projects/builds/Dotgrid-darwin-x64/ hundredrabbits/dotgrid:osx-64
 
+~/butler status hundredrabbits/dotgrid
+
 rm -r /xxiivv/Nataniev/public/public.projects/builds/Dotgrid-darwin-x64/
 rm -r /xxiivv/Nataniev/public/public.projects/builds/Dotgrid-linux-x64/
 rm -r /xxiivv/Nataniev/public/public.projects/builds/Dotgrid-win32-x64/
 
-~/butler status hundredrabbits/dotgrid
 
 ```
 
@@ -52,3 +53,27 @@ electron-packager . Dotgrid --platform=linux --arch=x64 --out /Users/VillaMoirai
 cd /Users/VillaMoirai/Github/HundredRabbits/Dotgrid/
 electron-packager . Dotgrid --platform=win32 --arch=x64 --out /Users/VillaMoirai/Desktop/ --overwrite --electron-version=1.7.5 --icon=icon.ico
 ```
+
+### Build 
+```
+cd /Users/VillaMoirai/Desktop/
+rm -r /Users/VillaMoirai/Desktop/Dotgrid-darwin-x64/ 
+rm -r /Users/VillaMoirai/Desktop/Ronin-darwin-x64/ 
+rm -r /Users/VillaMoirai/Desktop/Left-darwin-x64/ 
+rm -r /Users/VillaMoirai/Desktop/Marabu-darwin-x64/ 
+
+cd /Users/VillaMoirai/Github/HundredRabbits/Dotgrid/
+electron-packager . Dotgrid --platform=darwin --arch=x64 --out /Users/VillaMoirai/Desktop/ --overwrite --electron-version=1.7.5 --icon=icon.icns
+
+cd /Users/VillaMoirai/Github/HundredRabbits/Ronin/
+electron-packager . Ronin --platform=darwin --arch=x64 --out /Users/VillaMoirai/Desktop/ --overwrite --electron-version=1.7.5 --icon=icon.icns
+
+cd /Users/VillaMoirai/Github/HundredRabbits/Left/
+electron-packager . Left --platform=darwin --arch=x64 --out /Users/VillaMoirai/Desktop/ --overwrite --electron-version=1.7.5 --icon=icon.icns
+
+cd /Users/VillaMoirai/Github/HundredRabbits/Marabu/
+electron-packager . Marabu --platform=darwin --arch=x64 --out /Users/VillaMoirai/Desktop/ --overwrite --electron-version=1.7.5 --icon=icon.icns
+```
+
+
+
diff --git a/README.md b/README.md
index e3a44f7..97fd003 100644
--- a/README.md
+++ b/README.md
@@ -30,6 +30,11 @@ It works by adding control points and selecting a stroke type. So clicking the c
 - `-` Reduce stroke size.
 - `/` Toggle linecap.
 
+### Shortcuts
+
+- `ctrl+n` New canvas.
+- `alt+click` Erase target stroke.
+
 ## License
 
 See the [LICENSE](LICENSE.md) file for license rights and limitations (CC).
diff --git a/sources/scripts/dotgrid.js b/sources/scripts/dotgrid.js
index 6dc75ae..0d3bf3c 100644
--- a/sources/scripts/dotgrid.js
+++ b/sources/scripts/dotgrid.js
@@ -136,6 +136,7 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     var pos = this.position_in_grid(new Pos(e.clientX,e.clientY));
     pos = this.position_on_grid(pos);
 
+    if(e.altKey){ dotgrid.delete_at(pos); return; }
     if(pos.x>0) return;
 
     if(from === null){ this.set_from(pos); }
@@ -170,6 +171,21 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     end = pos;
   }
 
+  this.delete_at = function(pos)
+  {
+    var segs = [];
+
+    for(id in this.segments){
+      var s = this.segments[id];
+      if(s.from && s.from.is_equal(pos)){ continue; }
+      if(s.to && s.to.is_equal(pos)){ continue; }
+      if(s.end && s.end.is_equal(pos)){ continue; }
+      segs.push(s);
+    }
+    this.segments = segs;
+    this.draw();
+  }
+
   this.mod_thickness = function(mod)
   {
     this.thickness = Math.max(this.thickness+mod,0);
@@ -253,7 +269,7 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     this.segments.push(new Path_Line(from,to,end));
 
     this.draw();
-    reset();
+    this.reset();
   }
 
   this.draw_arc = function(orientation)
@@ -267,7 +283,7 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     this.segments.push(new Path_Arc(from,to,orientation,end));
 
     this.draw();
-    reset();
+    this.reset();
   }
 
   this.draw_bezier = function()
@@ -281,7 +297,7 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     this.segments.push(new Path_Bezier(from,to,end));
 
     this.draw();
-    reset();
+    this.reset();
   }
 
   this.draw_close = function()
@@ -292,15 +308,10 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     this.segments.push(new Path_Close());
 
     this.draw();
-    reset();
+    this.reset();
   }
 
   this.reset = function()
-  {
-    reset();
-  }
-
-  function reset()
   {
     from = null;
     to = null;
@@ -313,6 +324,16 @@ function Dotgrid(width,height,grid_x,grid_y,block_x,block_y,thickness = 3,lineca
     cursor_end.style.top = -100;
   }
 
+  this.clear = function()
+  {
+    this.reset();
+    this.segments = [];
+    this.thickness = 10
+    this.linecap = "square"
+    this.color = "#000000"
+    this.draw();
+  }
+
   this.erase = function()
   {
     if(from || to || end){
diff --git a/sources/scripts/keyboard.js b/sources/scripts/keyboard.js
index 0186786..4ab1eba 100644
--- a/sources/scripts/keyboard.js
+++ b/sources/scripts/keyboard.js
@@ -14,6 +14,12 @@ function Keyboard()
       return;
     }
 
+    // new
+    if(e.key == "n" && (e.ctrlKey || e.metaKey)){
+      dotgrid.clear();
+      return;
+    }
+
     // Reset
     if((e.key == "Backspace" || e.key == "Delete") && e.ctrlKey && e.shiftKey){
       e.preventDefault();
diff --git a/sources/scripts/pos.js b/sources/scripts/pos.js
index 87a97ee..98bdf71 100644
--- a/sources/scripts/pos.js
+++ b/sources/scripts/pos.js
@@ -20,6 +20,6 @@ function Pos(x,y)
 
   this.is_equal = function(pos2)
   {
-    return pos2.x == this.x && pos2.y == this.y;
+    return Math.abs(pos2.x) == Math.abs(this.x) && Math.abs(pos2.y) == Math.abs(this.y);
   }
 }
\ No newline at end of file