Well, recently I faced 1 hmm.. problem is a bit odd word in this case, but i can't find other one ;p
When I start tweaking my UI I usually either making backup profiles for all installed addons and then working with new profiles, or just backuping my WTF folder and in case smth goes wrong i restore it simply, but tbh both ways are very uncomfortable:
first one is very time consuming considering that If i change smth in my UI I usually change settings for 9-10 add-ons, that means that i need create backup profile 10 times :\
Another way is also not very comfortable since you need to log off\tab out if you want to make some changes or revert to older settings.
It would be really sweet if we'd have an add-on that provides a feature to manipulate with profiles for multiple ace2 add-ons at once, smth like ace(1) profiling system. So in a nut shell: you create and set profile in this addon and it automaticly chose this profile for all installed ace2 addons.
I don't have any extensive knowledge of lua coding whatever, but i belive it shouldn't be that hard to make that kind of addon since we already have DuceCommander for manipulating with settings for most of ace2 addons.
P.S. I appologize for my poor english, it's not my main language, but I hope you got the idea of what I tried to explain here.