You can add another asset in the Rental Real Estate section and select Amortizable intangibles.
Probably to late for that now, since 2021 is the year of sale.
Its perfectly possible and most likely that the refi fees were incorrectly entered as a depreciated asset instead of an amortized asset. In that case, there is no option to deduct any remaining fees. You'll have to do it manually with an entry in miscellaneous expenses.
