So, there are 4 command cards available. I need exactly 5. I'd really rather not have to do a work-around where a trigger selects another unit, so is there a way to add a 5th?

The fact that the field 'Ability - Command Card +' has '(|0002|0003|0004)' suggest it's possible to make well over the current 'limit'. So is there a way to add additional command cards?

Why do you need a depth of more than 4? Editing the data directly may allow you to do this, click the view raw data button in the data editor.

Edit: Just checked, editing raw data won't work, this may be a built in limitation.

I gotta say thats a lotta buttons you need. I havent really found a way to do this either, but Ill continue my search.

It probably is a limitation however.

Maybe you can edit a whole command card with triggers (catalog)...

Perhaps, on, one of the command cards, have an "ability" that, when activated, swaps out that command cards abilities with a new set of abilities. (Sort of like how when you Cloak, Uncloak pops up)
It's a thought....

Actually... that's an awesome idea. I like it! I'll definitely try it. ^.^