Isolated memory

Memory is great, but it would be excellent if the option existed to isolate memories to specific system prompts/characters. For example, if I'm working on a coding project with a specific “character” and don't want that to influence my others, only having memory of that character's threads would be ideal. Or if I've shared unique information with a character that I don't want influencing others, I could select to have memories for that character that are only of chats with that character.