Is there way to get the Actor value "WaitingForPlayer" from another NPC, rather than a follower? The problem with GetAV is that I can only get it to run on the AI belonging to the subject, but I need to make it work from an AI belonging to another NPC's Alias.

Run On: reference is no good as I need to get the value from the NPC currently filling the Follower alias.
Run On: Quest Alias doesn't work as I cannot select the quest or the alias.

If I'm understanding you correctly, you are trying to set conditions for some dialogue or something in your own custom quest. And you want to check the actor value "WaitingForPlayer" of the NPC filling the "Follower" alias in DialogueFollower. But you cannot get the condition to run on that because it's an alias from a different quest. Is that correct?

If so, you can try creating a new reference alias in your quest. Call it something like "DialogueFollowerAlias". Then choose the fill type as external alias, and select the DialogueFollower quest and its Follower alias. Now you can run the condition on your quest's "DialogueFollowerAlias".

That's it. only its not about dialogue (misleading quest name). I'll give that a go though - thanks.

EDIT: Tested in-game and it works. Thanks!