MyCareer Expansion

This may have been answered somewhere, but has anyone tried using 2Ktools to add an expansion team(s) to the league? I have this strong desire to create the Sonics in MyCareer and have a general idea on how to go about it by modifying a team via 2Ktools to be "current" but I'm curious if anyone else has tried this? Or am I just being completely oblivious to how Shuajota does this for PCBasket?

overwriting a team would work. No expansion option though.

overwriting a team would work. No expansion option though.

I suppose like copying a team from MyLeague after you move them.