How would you call this? Is it not a database? I always thought it was called like that. =(
Technically-speaking you could call this database I guess. It's just uncommon to use it in that context, because people just say "I want to copy this or that unit or ability", that's all.
Anyway, I also had trouble with morphing units in the past, but maybe I can get it to work now.
I've worked on a map with a new command center really quick. You can download it here: Click me!
The map contains both a normal command center, as well as a new command center. For testing purposes I gave it the bio-dome model.
If you try to lift-off and land the new command center, you can see that it has different command cards (one button is moved).
Animations don't work because I was too lazy to add them specifically for the bio-dome, but otherwise this should work.
The trick is that 1. both the standing and flying command center use the same actor, and 2. you have to replace every reference to the old command center, as well as flying command center, in the actor events.
If you know how to use XML view, you can just copy the code from the existing command center, replace the old unit ID with the new one, and paste the code into the field of your new actor.
I would like to do some doodads as decal and things that distinguish that is UED. But for example the UED logo is not symmetrical and in flags and other doodads you have to adjust the texture. so that the logo remains whole.