diff --git a/.gitignore b/.gitignore
index 572c354..8c61013 100644
--- a/.gitignore
+++ b/.gitignore
@@ -1,2 +1,3 @@
node_modules/
-builds/
\ No newline at end of file
+builds/
+package-lock.json
diff --git a/sources/index.html b/sources/index.html
index 44462b4..b8a4235 100644
--- a/sources/index.html
+++ b/sources/index.html
@@ -9,6 +9,7 @@
+
@@ -31,6 +32,8 @@
document.addEventListener('mousedown', function(e){ dotgrid.mouse_down(e); }, false);
document.addEventListener('mousemove', function(e){ dotgrid.mouse_move(e); }, false);
document.addEventListener('mouseup', function(e){ dotgrid.mouse_up(e);}, false);
+ document.addEventListener('copy', function(e){ dotgrid.copy(e);}, false);
+ document.addEventListener('paste', function(e){ dotgrid.paste(e);}, false);