Help needed for custom emulator with code

[Jeno_Jodi]

1. I used the following code for running Pine emulator: 

-n io.github.pine.emu/emu.skyline.EmulationActivity

  -a android.intent.action.VIEW

  -d {file.uri}

And the following code for running Citra mmj emulator:

-n org.citra.emu/org.citra.emu.ui.EmulationActivity

  -a android.intent.action.VIEW

  -e GamePath {file.path}

  --activity-clear-task

  --activity-clear -top

Got "Launch argument empty" on both cases. What am I doing wrong? 

2. Some emulators allow placing home screen shortcut for games. Is there a way to trick those emulators to place a shortcut within Launchbox so that I can directly launch them from Launchbox?