Hi guys !
I have this strange problem…
I don’t know why but I can’t get the “edge loop” button active.
I use the selection marquee to hide everything but four quads and now I should have the possibility to add a new edge loop by pressing the Edge Loop button. But it’s never active, where did I go wrong ? ( I use version 3.12 on osX )
give the object Uv’s then try
tool>texture>enable UV’s…hmm, that is probably different in the MAC version though…but there should be something somewhere that is similar
Thank you goast666 for the very fast response !
… but it didn’t work …any othe idea !? 
I believe that for the Mac version there is a quirk that you have to have a second subtool visible before the edge loop button becomes active.
Richard
I believe that rjmarklew is correct on that note.
Yeah, you’re right guys, thank you very much!
It’s a little weird because it doesn’t work always…
I really hope that guys at pixologic will remove all these differences between mac and pc version 
thank you again
Been having the same issue (one more) on 3.12, of course, and after a while searching tutos I began to think that I was kinda stupid, or something. Thanks for the trick! One more bug to the collection. When I try to sculpt bugs I mean insects!!!