Offer Grid - Internal vs External Candidates

Summary

Require different fields for Internal vs External Candidates

Content

Is there a way to contextualize offer grid fields to appear and/or be required based on whether the candidate receiving the offer is an internal candidate vs external candidate?

We are trying to collect the current base salary, increase amount and increase % and new base salary for internal candidates.  We would like these to be required for internal candidates, but they are not applicable to external candidates.

Thanks,

Nick