Is it possible to default LE at Journal Line to be the same as Journal Level in Create Journal page?

As client requested to default Legal Entity at Journal line level #2 to be the same as Legal Entity at Journal level #1

For example:

Journal level            #1 Legal Entity Name = user manually pick “CPR”

Journal line level     #2 Legal Entity = automatically default “CPR” (user no need to pick it again)

May I ask whether it is possible to customize on these requirement or not?