The ability to clone an extension would be a really really nice-to-have. :-)
I agree, this should be possible. But Integration Studio is of course that weird uncle nobody talks about, resulting in it having no major changes for ages. I mean, you can't even copy/paste a structure! I think the last "major" change was a fix earlier this year (or last year, can't remember) that fixed some layout issue with Vista/7. Yeah, that's what, 5 years after Vista came to light? Oh wait, I'm not supposed to rant in the comments of every Integration Studio wish? Darn...
It is.... finally... coming...!
Wow. Glad I didn't hold my breath though :).
There's so much more to P10 than just native mobile apps!!
A game changer!
I'm happy to announce that your idea is already available on the last release of the OutSystems platform 10.
Thank you for your time and collaboration in making OutSystems platform better.