would your middle mouse button happen to be working in the first place, just in case?

@PenolAkushari I don't know how I could test that out.

generally browsers have some feature where pressing middle mouse allows you to enter some mode where it will scroll with you moving mouse around rather than scrolling the wheel, probably that should allow to see if that works. seems to also be the case for steam client, and word documents, just in case. on windows that is

@PenolAkushari Okay so I tested that out, and I did enter the mode.

well, it does work then, that's good. so how do you enter the thing to be rebound? left click on the binding thing, then press the middle mouse? generally that seemed to work on my end last time i did that iirc

@PenolAkushari yes. I would click on the bound thingy and press my middle button.

and nothing happens after that, it doesn't change its binded button or anything?

@PenolAkushari Nope. Does nothing.

hm, weird. just in case, is it possible for you to temporarily bind some action from game itself through settings menu to mouse 3? need to check if game recognizes it at all then.

@PenolAkushari wdym?

when you're in the main menu there should be settings menu, it should allow you to rebind all base game stuff, like movement, voice chat and stuff. what i want is for you to try to bind some action from there to middle mouse and then see if it will work, as i would like to know if game itself sees your button. didn't happen to think of other ways to check that other than that yet

@PenolAkushari okay I did that and nothing worked. I think it's the game.

yeah, seems like it. i've never had such an issue myself, so i don't think i can help with that. google search didn't give me much valuable stuff either. perhaps there's something with the way your pc works. seems like you'd have to bind that thing to some button then

@PenolAkushari Ah okay. Well thanks for the help man. This mod is really cool and is worth a follow from people like me who wanna make Gmod art ya know? Anyways, have a nice day man.