When you change a shortcut, the preset pop-up menu gets changed to Custom.By default, the Adobe Premiere Pro Default preset is displayed. When Premiere Pro detects a non-supported keyboard, the default view is to display the U.S.Premiere Pro detects the keyboard hardware and the appropriate keyboard layout is displayed accordingly.When you select a key on the Keyboard Layout, you can view all the commands that are assigned to that unmodified key and all other modifier combinations. You can also press the modifier key on the hardware keyboard to achieve this result. When you select a modifier key on the keyboard layout, the keyboard displays all the shortcuts which require that modifier. A tool tip reveals the full command name when you hover over a key in the Keyboard layout. You can use the keyboard GUI to see which keys have been assigned and which are available for assignment.