Good day. Please tell me how to add, for example, an animation of climbing stairs to a ready-made character with its own animations. I am trying to do this from https://playcanvas.com/project/739888/overview/third-person
And I want to add one of these animations
https://www.mixamo.com/#/?page=1&query=stairs&type=Motion%2CMotionPack
When I add to the file itself to the model with the .glb extension in the editor, I freezes the preview