Use of Suspended Passive Activity Losses in Year of Death

Hi!  I'm preparing the final return for a relative who passed in 2020.   She had suspended, unused PALs from a couple PTPs and an S Corp.   I understand these losses should flow to taxable income in her final 1040.  I also believe these losses are to be reduced to the extent of the step up on the investments.   My question is:  How do I make this happen in Turbo Tax?   I've entered the date of death and noted that the K-1s are final K-1s for those investments, but the losses stay suspended.   It seems like maybe there's a box somewhere that I need to check?   Or some form that needs additional input?   Whatever hints and help you can share are greatly appreciated!