Try using this script ind Options > Advanced > Scripting:
$set(album,$if(%_releasecomment%,%album% \(%_releasecomment%\),%album%))
This should set the disambiguation comment (which is what you referred to extra title information) as part of the album title tag, e.g. “SomeTitle (Regular Edition)” (given I have made no mistake in the script, since I mostly wrote this from memory and it is late here).