Hi, I was doing a tutorial based on GMS 1.4 and it used a room editor option to delete underlying objects to avoid winding up with stacks of the same object without realizing it. I gather this feature was removed from GMS2's room editor, but is there a new automatic way to prevent stacking objects? It is still fairly easy to accidentally stack them when using alt+LMB to place lots of instances at once, for example. I saw a comment on some forum that the new layer system negates the need for this feature, but I'm not sure how. Am I missing something? Thanks!