Is it possibile to add a button, like to the left of the toolbelt that says "Skins" or something like that so that you don't have to type the / command each time? This may already exist as a configurable option... i just can't find it. 

You can bind it like eveything else

bind <key of choice> chat.say /skin

Yeah. I have it set up like that, but was kind of hoping there was a plugin that let you set keybinds to GUI buttons so that players on my server could just press it. Is there a way to make keybinds server wide for all players? Probably only can set binds for myself, yeah?