With a command line either passed from Steam or entered directly:
1. Start Launcher
- Enter Command line Parameters directly if not passed from Steam
2. Change MOD Storage folder location
- I'm switching between '...\Steam\steamapps\common\Arma 3' and
'...\Users\DJPorterNZ\Documents\Arma 3' for testing purposes
3. Hit 'Yes' to Do You Really... dialog
4. Hit 'Yes' to Restart Now? dialog
5. Go to Parameters tab. Command line Parameters line is now missing.