How do I convert morphs to costumes?

[ego-lay_atman-bay]

is this what you want?

How do I sense what morph the mouse is on?

This probably still has a lot of holes in it, because there are so many different morphs and rules, but I think this fixes your problem about the labels: var ms = this.world().hand.mouseOverList[0]; if (ms instanceof ArgMorph || ms instanceof BlockLabelMorph || eval(ms.constructor.name + '.uber') instanceof StringMorph || ms instanceof ArgMorph){ return new Context(null, ms.parent.fullCopy()); } else if (ms instanceof BlockMorph){ return new Context(null, ms.fullCopy()); } else if (ms in…