Hello.
I have not worked with BAS at all but I think it is just a front end to Parties and Roles.
If so, the Names for the parties are not limited to the pre-defined list. You can just type in your own value.
Qualifiers. If you select a Name of the list, the Qualifier should be populated for you.
If you create a custom name, like Foo, you can get the qualifier to anything you like, Foo2
In the past, we used qualifiers to route message inside the Orchestration to a Party.
Hope this helps.