Korg PA4X Quick Start Manual page 30

26| Interface basics
Touch one of the available commands to select it. (Or, touch anywhere else
on the screen to make it disappear, with no command selected).
Pop-up menus
When a down-pointing arrow appears next to a parameter name, either
touch the arrow to open the pop-up menu and choose an option from there,
or use the VALUE controls to scroll the list of options.
If you want to make the menu disappear without selecting anything, touch
anywhere else on the display.
Lists and scrollbars
Files on storage media, as well as other kinds of data, are shown as lists. Use
the scrollbar to scroll the list content. Also, you can use the VALUE controls
to scroll.