Aim circle disable

[Hobel]

How can I turn off aim circle for vehicles in the editor?

[NeMoGas]

You mean the compute firing solution? If so you have to disable it in special options. If you create a mission and save said mission with that setting on you will have to resave the mission after you turn it off to take effect. It's unfortunate that ED has some of the user settings like this override even the options changed in the options LUA in the saved mission but they do. 

[Hobel]

Yes.   Interesting I will test it thanks.!