I'm trying to make a summonable follower that will last for a specified amount of time. In other words, they talk and function just like a normal NPC, and should have normal follower dialogue (instead of making zombie noises like a normal summon). I was told that this would be possible with a script on the spell effect, and my heart sank as I have absolutely no knowledge in this field.

I've thought about this a great deal and this is exactly what I'd like:
-Summonable follower
-Normal follower dialogue (Wait/follow mainly, no "part ways")
-Move back to the holding cell after a set amount of time (I'm thinking 240 seconds)
-Plays a random choice of 2 lines a few seconds before disappearing

I've spoken to kromey about this, and he says the summon might be possible by summoning a marker where the crosshair is pointing, then moving the NPC from its holding cell to the marker, then deleting the marker. When the timer is up, the NPC would move back to the holding cell.
Also - the countdown timer should pause when the player is in dialogue with her.

Would anyone be able to offer any pointers? I would be immensely grateful - the entire mod I've been working on for a couple of weeks sprouted from this concept.