Rotate character around axis smoothly

Hello everyone:)

I’m really newbie in UE4, so pls help me with my issue)

Now I want to rotate character around another object by clicking on button, for example, on 90 euler degrees and I want to do it smoothly.
I’m use RotateVectorAroundAxis, but what I’ve got - is just vector value of point I need to move.
Please, help me with this blueprint, how can I move to this point smoothly (without event tick preferably)

http://dl3.joxi.net/drive/0013/0505/868857/160328/0f8f7f3b68.jpg