DDBoost for SQL - Create Lockbox Credentials outside of GUI?

I started looking at the DD Boost client for backing up SQL Server databases and it works pretty well from SQL Server Management Studio.

However, while setting up the credentials to connect to the Data Domain is easy for a single SQL Server, it'd be really helpful to be able to be able to have them pre-generated when doing multiple installations. Even better, to facilitate credential changes en-masse.

On a blind hunch, I tried copying over the ddbmadmin.lb* files from C:\Program Files\EMC DD Boost Modules\DDBMA\config between servers, but nope - they're unique per server.

I was able to override the lockbox by changing a cmd line parameter and supplying the plaintext password that way, but I don't like it for obvious reasons.

Is there a way to create a set of lockbox files (.lb) without having to enter the information inside of the GUI?