Cannot change crosshair

In GMod i cant change my crosshair, I go into options then multiplayer and the options arent there. The slider has no slider to move, no cvars ive found online work. Ideas?

I’ve never been known to be able to manually change the crosshair through the console after l4d2, and gmod doesn’t use the standard customizable crosshair such as in CS:S. It’s been established that the mutiplayer tab in the options menu is bugged, I don’t even have options there, but there is an addon in the workshop that allows you to customize your crosshair, so I would recommend that