You can reduce the size of the left-hand menu, which is particularly useful if you're working on a device with a smaller screen.
Click on the icon top left to minify, maximise the menu:
Please note that from 2022 the menu will be minimised by default.
When you hover (or click) on a menu on a touch screen a popup will appear to show you what the menu is for.
It also allows you the ability to navigate directly to subMenu items.
The Home Page
Please note the home page will now be accessible by clicking on the icon top left.
It won't have its own menu item anymore - to save space.