I so want to make Una work, but the documentation is woefully inadequate. 

I was pointed here for clarification and I'd seen this already. Nowhere in the tiny description of spaces does it say it is the alternative to groups. It leaves the very clear impression that it organizes groups. I've already created 30+ groups that I was under the impression could be grouped under spaces. Now I get the impression I have to throw all of that out and start over. And I paid $50/year to find out this is going to make more work and still don't know if it will function as I expect/need it to. 

My site needs to have 5 "spaces" each with three groups. Then another one with 7-8. And perhaps 2-3 more each with multiple areas inside them. Why not just have the option to add groups to spaces? Or just have spaces instead of groups? 

So I need to recreate all of these groups I gather and set a parent with the name of the container for each of the spaces?