...but that will make it more difficult if you want to assign a Material. You'll need to either go back to Options and turn it back on, or expand the Solid Bodies (or Cut List) folder and right-click.
We created a "blank" material in our part template file....Create a new material and for a name use a space. Then if you need to change it later all you need to do is re-assign a real material
You could set up you part template(s) with a generic material. Maybe make a material called "TBC"?