how to change STEAM directory for Trilian or Omnisphere

run from cmd:

search for STEAM (ctrl+f, then F3 to search again)
when youll get to the values of Trillian (youll see on the tree on your left you are under trilian), go to the key of InstallLocation
and set the value for the right library location: i.e. XXX\STEAM
then remove Trilian channels in cubase and add it again.- or restart

registry is very fragile so always backup you changes, so if things mess up you can go back.