Remove driver arms in cockpit (Mods)

[jutsch]

Hey,
does anyone know how i can completely remove the drivers arms in cockpit view for mods?
for official content "arms off" works perfectly in the options however, for the f1 2006 mod and f1 2009 mod i am playing the arms are still shown, in 2006 they do at least move but in 2009 (FSONE, a conversion from rfactor) they have no animation at all.

I want to have them removed completely, i read in rfactor 2 you can do this by editing the upgrades.ini file in GameData, but I can't get them removed in Automobilista.
As i said, for official content, eg. Formula Ultimate, i don't have this problem but for Mods the arms just won't go away :/

Any help greatly appreciated!