To ungroup a custom aperture, I would suggest using the command Explode. Select any objects you wish to ungroup, and go to menu: Edit | Explode | All...
However you will receive polygons (because that's how they were defined in the custom aperture). If polygons are not good for you:
FAB 3000 will now generate oblong flashes that can be used for all SMT Pad analysis, etc.
Simon Garrison
Is there any way to ungroup the shapes received from my vendors, like this?
The reason to ungroup is to review individually the aspect│ area ratio and sizes...
Hopefully can be understanding this concern