How do I SELECT CHARACTER İN ONLİNE GAME

Question 1:

I am making online 2D Car games with different motorcycles with different abilities but i dont know how do it online. I used vehicle buttons so there is no custom movements, there is a impulse.

Peers how to select their Car and only controling it? When a peer clicks right button, Other Cars is affecting too. How to make controls to players special? For Example, i selected A Car, He select B car but i dont want to affect B car with pressing "Right Button"

Question 2 :

I made "Car Select" Layout and created a global variable for each cars. For Example, i made Global Variable "A" for A car and i click A button that sets variable 0 and when i set variable 0, Car creating at Game Layout thats not problem but, i made abilities :

When Press E :

IF "A" global Variable=0 Make impulse to A car (80,0)

so i need to click on select button and create A car, not with Global Variable. How to do this?

make it thru mp plugin ... go thru its demo , you will get all understanding.