Add documentation for cut and copy
@@ -117,6 +117,18 @@ multiple cursors and `chars` has the same number of lines as there are
cursors, one line will be inserted at each cursor, in order; otherwise the full
string will be inserted at each cursor.
+#### copy
+
+`copy -> String|Null`
+
+Copies the active selection, returning their contents or `Null` if the selection was empty.
+
+#### cut
+
+`cut -> String|Null`
+
+Cut the active selection, returning their contents or `Null` if the selection was empty.
+
#### cancel_operation
`cancel_operation`
