CapsMan with Repeater function

Hello
After deploying a few caps clients, I cannot get away from the simplicity. I want to extend it in such a way that my repeaters radios are also controlled by capsman.
So, I tried creating virtual APs(2 APs on my repeater) and tried to associate one AP with capsman and other AP - tried to as client to another wireless.

It doesnot work. It seems caps can work ONLY if it is not virtual. I can select virtual interface as discover interface but it doesnt want to do anything with it.

How is it done when virtual interfaces are involved?

Thank you.

(The screenshot has all required windows- Its the client(repeater) side. There are other capsman managed wireless working from a central mikrotik- so i have a working configuration)

Edit - I have put capsman address in the cap screen)
client1.png