--note: if it doesnt work change all the prefixes to the current prefix the game has or you have
game.Players.LocalPlayer:GetMouse().KeyDown:Connect(function(key)
    if key == "[" then
     game.Players:Chat('/bighead me /crm me red 0 granite /face me 29532363 /cape me red')
	end
end)
game.Players.LocalPlayer:GetMouse().KeyDown:Connect(function(key)
    if key == "]" then
     game.Players:Chat('/bighead me /crm me green 0 neon /face me 7074786 /cape me green')
	end
end)
game.Players.LocalPlayer:GetMouse().KeyDown:Connect(function(key)
    if key == "," then
     game.Players:Chat('/bighead me /crm me blue 99 glass /face me 391496223 /cape me blue')
	end
end)