Roll-over Price Mapping question

Hi.  I thank you in advance for any and all advice.  I have a price type that is being phased out.  Essentially I need to map that soon to be phased out price type to three different price types.  Can you do this in tr_rollover_price_mapping?  Will I have to choose one of the three price types and roll and then go into the rolled packages and change the price types?

Thank you!

Heather Fails