Find more UCGO compatible addons
Vessels that support cargoes, Cars, cargoes, and Skins. The list of addons made for UCGO may grow regularly, so check it from time to time.
You can search on OrbiterHangar with keyword "UCGO" (quick search or Search)
Authors may announce their addon on this sticky post on my forum:
List of UCGO compatible addons on Dansteph's forum
Here is a link to all my addons on OrbitHangar:
DanSteph's Orbiter Add-ons
And of course, read the forums ;)