I have been trying to figure out how to work with the new customization interface in ACAD2006, and have been able to successfully add toolbar buttons so long as they are copies of other buttons. What I haven't been able to get yet is how to add a blank button and then add a macro to it, like we did in the past. It looks as though you have to start with a copy of an existing button and then edit its macro to do what you want. Am I missing something?