How to create a video for a map?

Guys, in my video, I can only apply animation to one hero and one monster. I placed Godric and Rutger on the map, but in the herolink, I can only select Godric, so I can apply the animation to him without any problems. I need to apply the animation to Rutger. I tried changing Godric's name to Rutger's name, but instead, Rutger appeared in Godric's place, and the animation is displayed on him. How can I apply the animation to another hero?