Spawn Ais, rotate around a Actor

Hello Guys,

i create a blueprint actor to spawn many ais in row on the x axis. But my problem is, i want to rotate these row of ais around the actor placed in the scene. I tried it with vector around axis with Vector = AI Postion and Axis = Actor Postion but with no success. Also i tried to attach the ais to the actor to rotate them, but also no success.

Can anyone help a dumb math guy?

Greets