overlay would still mean I have to copy the structure from libs over and that is inherently not upgrade save - it seems there should be a better solution to this problem

the documentation page at http://docs.adobe.com/docs/en/cq/5-6-1/administering/config_undo.html suggests modifying the undo list in /libs - it seems that's not a good practice since changes in libs get overwritten by an upgrade of AEM. Is there a better way to extend the undo list with an overlay in...

is it possible to add additional archetypes (other than the simple archetype provided by adobe) to the aem ide tooling suite?