You could use SuperDuperMacro addon too. Install the addon from wowinterface.com:

http://www.wowinterface.com/download...uperMacro.html

Then install the fix for 4.01 and look for the button in your Macro window:

http://www.wowinterface.com/download...WoW4.xfix.html

This is a great addon as it allows you to really work out a lot macro functions without taking up to many of your macro spots in the wow macro limits.