I would just filter by the app account you are wanting to look at, make sure dbname is one of the columns.

Maybe add:

SQl: StmtCompleted and SQL: StmtStarting

SP: StmtCompleted and SQL: StmtStarting

Test a transaction, At a high level look for any part of showing use of a database outside of what you would expect and then further into the SQL or SP statements if needed.