When creating macro's, occasionally I'll try to make a new macro and the "Add to Bar" checkbox won't be available, and in order to make it available I need to delete all, or nearly all my existing macros.
Steps to reproduce: Add a few /gmroll or /roll macros (3 or 4), then go about testing them or doing something else such as going to the token/object or map layer, then go back and try to add a new macro, when the untitled macro opens the "add to bar" checkbox is no longer available.
Browser Google Chrome 19.0.1084.56, OS Windows 7 64bit