Using Advanced Lookup by Groups with multiple databases is not a problem but, if you are saving lookup schemes, bear in mind that
they most likely will work only in the database you create them.
Indeed Advanced Lookup by Groups stores the internal ID of the groups, not their names,
so a group called Friends might have a different internal ID in your different databases. Consequently, in a multiple database environment, it might be
wise to include some database identification in the names you are giving your saved lookup schemes, so that you quickly know in which database you created them.