This seems like a handy feature that wouldn't be too difficult to implement but I haven't been able to find anything. I'm interested in modifying or adding new load combos (in this case I'd like to run a load history analysis for a two way slab with a different percentage of the live load being added for the sustained loading step) but every time I reopen a slab I've exited all the changes I've made to the combos have been reverted. It's not a huge issue but the time it takes to reinput each combo by hand each time (rather than using a spreadsheet if they all need to be deleted for some reason in the first place) multiplied by the 12 floors I have to do it really adds up.
Thanks!
-Rich
