Arma combined ops on steam

[pino69 10]

Hello,

I've got Arma 2 and OA on steam.

I can launch COfrom the OA shortct on steam interface but I have to do it each time, no CO shortcut being created on steam. Is it the normal way ?

On another side, I can't figure how to manage addons for CO because I can't manage extensions for the CO launch.

Then, how do you manage options (video, sound), when you launch CO from the steam OA shortcut ? I have no possibilities in the game menu to do it.

Thank you for your answers.