Basically, you press a button, and it toggles a gui's visibility.
local mouse = game.Players.LocalPlayer:GetMouse() mouse.KeyDown:connect(function(key) if key == "115" then script.Parent.Visible = not script.Parent.Visible end end)
You either do this:
local mouse = game.Players.LocalPlayer:GetMouse() mouse.KeyDown:connect(function(key) if key:byte() == 115 then script.Parent.Visible = not script.Parent.Visible end end)
Or this:
local mouse = game.Players.LocalPlayer:GetMouse() mouse.KeyDown:connect(function(key) if key == "s" then script.Parent.Visible = not script.Parent.Visible end end)