Display name is not assigned automatically for assistants

[Corborax]

For printed dealer badges ...

If a dealership has a display name, the assistant should have the same display name automatically.

On the other hand ... the assistant should always show the Dealer / Display name who they are helping with ...

So maybe like this:
Each assistant should automatically have their dealership's Display Name entered in their own display name data field. If no display name was given, they get the Dealership name entered as display name. That way it will always show up on the printed dealer badge.

The "display name field" should not be writable for assistants.