In your NickelMenu config file add the following lines to launch KOReader and Plato directly from NickelMenu (file lives in /.adds/nm):
Code:
menu_item : main : KOReader : cmd_spawn : quiet : exec /mnt/onboard/.adds/koreader/koreader.sh
menu_item : main : Plato : cmd_spawn : quiet : exec /mnt/onboard/.adds/plato/plato.sh
The sample lines show in the main menu from the home page. You can change the main to show it elsewhere as well. In the nm directory, I would delete any files other than your config file and the original doc file.
Please note that there will not a .png file to launch KOReader or Plato. It must be done through popping NickelMenu's windows.