I did a rapid search through the BYOND features forum and did not see this request. Ive always thought a drop down menu would be a pleasant addition for the interface. Like the button, it could be placed on the interface; you could edit the items within the menu. There should also be a limit on how many items could be in a menu, such as 6. Each item will have a command area in which you can put a verb there for a command to be preformed.