Typically model backgrounds are fairly large AutoCAD (dwg) files that take a while to load and slow down the view, so I tend to disable them as much as possible while modelling. However, to do that I have to double click it, then click Properties in the "Wizard" window, go to General, and uncheck 3D shape.
My proposal is to add to the context (right-click) menu of the Model Background in the Toolbox an option to "Toggle display".
In addition, you can maybe create an option "Re-start Wizard" and change "Properties" to just take me to the ... well, properties 🙂
And if you have spare time, maybe an option "Layers..." for AutoCAD that automatically takes you to the penultimate ("Customize layer visibility and color") tab would be nice to have.
