So, despite being a long PC player, i do love to use the Xbox One controller to play GTA V. It is smoother, and driving in 60fps is a dream. But the problem is, since i have A TON of lspdfr mods, there are a lot of features that require keyboard keys (like i swear every key is taken up by now). It's really annoying having to pull out my keyboard every time (it's on one of those pull-out shelves). So basically... does the Xbox One chatpad work with GTA V and mods???

I would love to know this as well

I'm not sure if the chatpad would even work on a PC, I don't own an Xbone or an Xbone controller, so I'd like someone with a controller to confirm. 

Basically you wanna be asking if the controller chatpad will work as a normal keyboard, if yes, than it should would in any game as a keyboard (so it would work with GTAV and LSPDFR..). 

I think it'd certainly be worth it, I for one hate having to move my hand to the keyboard when I gotta do something for a mod I don't have enough controller buttons for.