How to make journal lines context default based on ledger for existing context

Summary:

How to make journal lines context default based on ledger for existing context

Content (please ensure you mask any confidential information):

We have two ledgers with an existing context being used where user must select the context everytime journals are created, line by line. But this context is not selected by default and users can forget some line to be selected and consequently segment will be blank.

We want to create a rule to set this context by default when a journal for these ledgers are created, not impacting other ledgers around the world.

Can we do this approach? We cannot deprecate this context, we can just change existing setups and include new segments is needed to get this expected behavior.