How can I Open payment journal only for specific journal batch/user type

I have different user 'types'

New field in the Gen. Journal Batch table (232) "User Type"
User Setup new field "User Type".

When the user opens the Payment Journal, I can filter on the batch table if they look it up.

Problem:

If the last used batch was for BANK which is not within the filter, that batch opens up with whatever lines are in that journal.

I need to prevent the 'last used' and force a selection from the allowed list of batches.

I cannot find the insertion point for my filter code.

Any suggestions please.