I have 2 questions regarding general login procedures and the
LoginUsernamePrefix property.

First, I'm getting ready to deploy a D7/IBO/Firebird 1.5 app to
hundreds of users. Although my app has a login screen and each user
has a unique username and password, internally in the app I connect
everyone to the database with the same Firebird-defined username and
password so that I don't have to maintain a 2nd identical list of
usernames and passwords in Firebird. Is this an OK approach? I
haven't encountered any problems thus far.

Second, regarding the TIB_Connection.LoginUsernamePrefix property.
Can I use this in combination with the TIB_UtilityBar's Who
functionality (in another app) to display all the users currently
accessing the database? I tried assigning this property using the
username the user used when they start my app, hoping that when I
pressed the Who button on the TIB_UtilityBar that it would display
both the internal non-unique Firebird login name as well as user's
unique app login name, but this did not work. Is this possible to
accomplish?