Widget Switcher Containers

Hey there.

For a small project I’m working on for uni, I’m trying to put together a pause menu with sub menus.
Using the widget switcher I’ve managed to create that, but the containers that hold the different things (Items, Equipment etc) is very limited. The contents in the Palette menu don’t seem to helping much at all. I was using a Border but I could only add a single child. I’ve started using the Canvas Panel where I am able to add multiple childs, but they seem to be disabled. The Slider and text seem to be grayed out for some reason. I’ve tried many different ways to fix this, but cannot find a solution.