Board Thread:Questions and Answers/@comment-44207634-20191022125829/@comment-43786704-20200204145711

No, because Heaven's Door only alters memories, and not the physical abilities of the people themselves. You could have them forget an ability, but they cannot add or erase abilities.

Ex. Jotaro just vibing with Star Platinum the World. Rohan gets him and opens up his face. He takes a page from the DIO fight and leaves. Jotaro now no longer remembers he can stop time, but he can still stop time.