Buttons over file pane

Hi, please see this short 30 second video regarding location of customized buttons that point to file locations:

While you don't have to for this, you can add multiple toolbars to that area here in Preferences:

Any toolbar in that area can be edited while in Customize mode (Settings > Customize Toolbars), and while in that mode you can simply drag & drop folders to a toolbar to create buttons which go to those folders.