How to disable "Launch game with custom arguments" popup?

[Fabo.sk]

Every time I launch a game with arguments, a "Launch game with custom arguments" popup comes out asking me if I really want to do that.

Yes, I do! How do I get rid of the popup for good?

Don't advise me to get rid of the parameters, that's the point, I want them there.

[Fabo.sk]

Forgot to mention: I use multiple different ones based on what I am doing... so putting the arguments in the Launch options field in Steam Library game properties is just a workaround, not a solution either (if it even works)

[insanetigertig]

I would LOVE to know this too. I use mods, and custom arguments are reqired for them to be able to work.