Full screen live view

When I'm shooting still life or food in portrait orientation, I have an external monitor set up for my stylist/client at 90-degree rotation so I can get as large an image as possible while they're building the scene. However, due to the tools being permanently displayed to the left of the window, this makes the live view area significantly smaller with large areas of unused screen above and below it. If there could be a way to turn the tool viewer off, live view could fill the screen and make more use of the space available. I know my stylists would massively appreciate this because I can't always get the screen that close to them, so live view needs to be as large as possible to see from a distance.