How do u do so you click a door and then it open and closes each time you click?

Put script in Awnser plz.

Here's a simple script that opens and closes when clicked. Insert the script and a ClickDetector into the door part. Modify the script to your liking. EDIT: I didn't see your comment, remove the CanCollide and Transparency lines and change them to rotate the door. Use this page on the wiki for help: http://wiki.roblox.com/index.php?title=CFrame

door = script.Parent
open = false

door.ClickDetector.MouseClick:connect(function()
	if(open == false) then
		door.CanCollide = false
		door.Transparency = 0.5
		open = true
	elseif(open == true) then
		door.CanCollide = true
		door.Transparency = 0
		open = false
	end
end)

If you mean a sliding door then use the HansCo sliding door kit

http://web.roblox.com/HansCo-CFrame-Door-A-item?id=14704864

Its very simple to use. If you already have a door then the script might be usefull :P