Does this mod allow adding/deleting/editing of memories while the game remains paused?

Yes, of course. If you are looking at the memories panel, you might need to close it and reopen to see the change.

Oh, awesome! I just was wondering, because I'm pretty sure the Memory Manipulator mod object (by Aaroneous) requires the game to be unpaused before any changes take effect.

Update 2.3.7:
* Possible error when resetting outfit on modded NPCs.
* A more concise dialog message when resetting NPC outfit.
* NPCs did not spin into their job outfit on reset as intended.
* Show all lots where an NPC is familiar.
* Ability to take out items from lot inventory with a dialog.
* Relaxed the Related filter to reveal unknown family.

This is a pretty interesting mod and i have a quick question regarding it; For context i am in the process of creating some hoods to share and id love to use this as a way to streamline the process of creating and managing memories for the characters, the question in case being:

Is this mod safe to remove after usage/Safe for people to play in lots(or hoods) where this mod was used despite not having it in their game?

Yes. Do not install Lot Operations for this application.