SteamVR Input and Interaction System: how use with PICO controllers

[76561199632232515]

Hello all, I'm a beginner developer with the SteamVR plugin in Unity and I could really use some help.
I don't fully understand the SteamVR Input and Interaction System. I would like to configure PICO controllers to use in my application (the objective is to just press a button in the game). However, despite my attempts, from the Player prefab, I am not even able to view the controller (only the hand model appears).

Could anyone help me with how to configure the model and controller inputs?