I was watching
The War Prayer Season 1 and there is a Vorlon power or modification to a normal Telepathic Ability that I noticed.
Sinclair was speaking to Kosh:
Sinclair: Meanwhile it might be helpful if you spoke with the other ambassadors.
Kosh: We take no interest in the affairs of others.
Sinclair: Well I hope you'll reconsider. If you could give us a hand, we - [pause]
Kosh: Yes?
Sinclair: Nothing. We'll respect your wishes.
That's quite a viewer. I've never seen anything like it before. What is it?
Kosh: Efficient.
Sinclair: Those are images from my world. If I may ask, what are you -
Kosh: I am studying.
Sinclair: Studying what?
Kosh: [shuts down]
There is a look on Sinclair's face that his eyes glazed over just before he said "Nothing." It is the same kind of pause that the B5 security person did when Bester was Scanning him in
Mindwar.
Either it was a form of Mind Control, where Sinclair thinks it is his idea to stop requesting Kosh intervene - similar to
Idea Seed (see "Psi Corps book"
http://www.mongoosepublishing.com/rpg/detail.php?qsID=512&qsSeries=11 ) or some kind of
False Memory Implantation that is quick.
I suggest that it is handled similar to how Telepathic Abilities modifications are handled in the Psi Corps book.
Idea Seed Immediate action +5 or +10 to the DC.