How to acitve 4 missle at the same time

I put the missle on car,and when I press E on one missile it will only launch one missle not all of them,I tried to wield them but it doesnt working.

HELP!

Help please?

Noone anwsering? Please guys,help me,and what tha hell is “Dumb x3” lol? I know im dumb,but im new to GMOD

Get wiremod and wire them to a button, then press the button.

Make sure they’re all bound to the same key, or try four different keys and click them all at the same time.