I hate to double post this, but it seems like such a simple thing, and the thread I posted to is "Answered". I'll delete the post over there if it gets answered here or vice versa.
I tried searching the forums and found how this was done in the past. But it appears that something has changed. I can't change the default thickness from the Global Variable dialog, from the Cut List, etc...And I saw the answered thread over at Changing sheet thickness by global equation . Well, something has changed and I can't change the default thickness for the entire part, only for the specific feature:
So, how do I change the default thickness of a sheet metal part after the first feature is created?