Online Game - Different UI for different players?

Hey there checking out this new UI system, liking it so far. However, I'm curious how I would set up an online game, where one player sees one type of GUI, and another sees a completely different one, or even none at all. For instance imagine a "cat and mouse" game, the cat would have a completely different UI and buttons than a mouse.

In the old canvas system you could set the canvas's render mode to Screen Space - Camera and pick the Player camera you wanted that way, just curious if there is a way to accomplish the same functionality with the new UI toolkit/builder. I'm using MLAPI for reference.