The Scrollbar is actually an add-on to our previously presented component – Scroll Area. The idea is that, in order to use the Scrollbar, we need to have an instance of Scroll Area on the screen already; the Scrollbar(s) will be added to control this Scroll Area (vertically and/or horizontally), but the very cool thing is that you can place them anywhere on the screen, not only adjacently to the scrolling area.
Setting up the general configuration
Reusing Scroll Area (Save-and-Load)