Can a new user inherit a previous user's forecast?

We’ve recently backfilled an open manager role.  While the seat was empty it was filled in our SFDC role hierarchy with a dummy user, on whose behalf a regional GM has been forecasting.

Now that the manager is in seat, is it possible for them to inherit the existing forecast that the GM has been inputting?  If possible I’d like them to come in to Clari with better context than “here are screenshots I took of what your role was calling previous to you joining.”