I have the following:
I want it so when I click on create game, the canvas/area on the right populates with a submenu(?) or otherwise options per that button. I don’t need to create a whole-new screen/child-menu, overlays, or transition to new screens; my game isn’t that complex.
For the main UI, I need but a single screen where each option on the left maps to a child-menu on the right.
Do I need a widget-switcher? Design distinct UI’s and put them up as one clicks on the buttons? Do I need something else?
It’s been a long time since I did UI work and I need a refresher! 
