How to connect assets inside a Character's Blueprint for Mocap { Rokoko }

Hi there!
I am setting up a character to use during mocap, but I came across a 'problem that I can’t find the solution.

Does anyone know how I can connect these controls together?

This control ia for Rokoko Mocap and the setup can be found here ;

I can’t find the solution to merge different skeletal meshes to the Blueprint that needs to be cast to { Cast To Rokoko )


Any help would be very appreciated,
Thank you so much!