Found a partial answer: Top menu: "Windows"/ Full Screen (No Toolbars) . . or Command-T. This option is way at the bottom of the Windows menu.
That does hide the tools, but still will not give a full display of my 80+ measures.
So, I took two screen-shots to get the total arrangement, and will combine the 2 images in photoshop, and then save as PDF for "forScore" use