The user can implant memories into the minds of others, which can either be the memories of others, or false memories manufactured by the user. They can completely re-write a person's memories to change their personalities, knowledge, self-identifications, etc.
Blindspot (Marvel) is able to selectively absorb the memories of others, store them within her own mind, and transfer them to others, even if they do not belong to the person or people she is giving them to
Neuralyzer (MIB); before or after use, one can supplement new memories to those affected
Jack Force (Blue Bloods Series) was able to implant a memory of a past life of him and Allegra Van Alen on her daughter.
Kessler (Infamous) can implant his memories into the minds of others, though he is only shown doing this to his past self, Cole McGrath.