You are working the controllers the "hard way". In your controllers setup, choose a vendor and model. For example, I assigned Falcon and F16V3 to your first controller.
Then I went into visualize button and dragged models to the ports on the controller. This is the "easy way".
When you do it this way, the upload functions will work as well. Zoom room (go to xlights home page and look for the Zoom button top right) can help with any questions as this is purely a training issue. If you run into specific problems, you can hit us up here.