An interesting series of actions. Copy and paste the following 4 lines of plain text into the RT Editor without any blank lines before or after. Item 1 Item 2 Item 3 Item 4 Then Ctrl-A to select all. Then click the Numbered List button several times. It should (?) toggle the option on and off, right? Or if not, it should at least do something sensible in some other way. But it doesn't!