In this Mode, the keyboard works as its original layout, except for the Right SHIFT that works as a Modifier Key allowing to access to the propietary keys of the C-128 (ESC, TAB, ALT, CAPS LOCK, HELP, LINE FEED, 40/80 DISPLAY y NO SCROLL) and the Numeric Pad.
For this to work properly, you need to use the proper «.vkm» files in your emulator, and select it as a Keyboard Positional Setting. This “.vkm” link every key with its intended function into the emulator.
This way when you press Right SHIFT, several keys switch to another layer, as shown in white. The rest of the keys will work normally, like a normal SHIFT pressed.
When you exit the emulator, remember to switch back to PC Compatible Mode by pressing C= and RESTORE.