Toolbars group and organize buttons that activate commands and tools in SketchUp. They are available for most default commands, like drawing and editing tools, and also for installed 3rd party extension. I prefer a clean screen, so I keep most toolbars closed while working and only open what I need on demand.
You can close toolbars in the same way, just uncheck the toolbar you wish to close.
I usually keep SketchUp’s Large Tool Set open at all times. Some of the functions come in handy, but most of them I have keyboard shortcuts for. This toolbar is most helpful for teaching. Once you finish the course, you can decide.
HEADS UP! If you have multiple monitors and don’t see the Toolbars you are trying to open within your SketchUp window, take a look around at your other screens.
On a PC, you can dock the toolbars to organize your workspace.
Maximize your 3D workspace by minimizing your toolbar footprint. Select View > Toolbars, then click on the Options tab, and check on Large Buttons to toggle the large icons on and off. I have big monitors with lots of pixels, so I actually prefer the large tool buttons turned on.
DIG DEEPER… Check out page 131 in “The SketchUp Workflow for Architecture”.