I do this:

For each differing setup I create all the windows in maximizer and create commands for each. so if I have 1 set of 4 and1 set of 5, I have 9 defined commands/regions.

Depending on what I'm doing, I'll then launch them manually all at once using semi colons... Region1;Region2;Region3;BigOneorsomething (case sensitive).... sometimes I'll even mod the ini, so that only the groupings I want show in the dropdown... it'd be nice to be able to say I want "Group1" and have it launch four commands, but this solution works very well so far, even if a tad cluttered in the maximizer settings.