DH Rule

Question
I keep score for the Forest Hill Heat and have a question about the
DH. Can the DH be used defensively for any player or can they only be
used for the person for whom they are batting?

For ex: Susie is DH for Sally who plays 3rd base.
Kathy plays 1st base.

Can Susie play 1st base and be in the field the same time
Sally is playing 3rd base.

Response

The short answer is NO.

There are two players occupying the same batting position - one playing offense and the other playing defense.
For the offensive player to play defense (or vice versa) the defensive play must come out of the game and the batting position now has just one player for the rest of the game. The original defensive player may re-enter but then the original offensive