The page numbers and page of syntax are field edit instructions in the rtf. When they occur in the title, they are activated automatically,even in edit mode. When they are activated in the body, each one has to be activated independently.
In both tagsets.rtf and the traditonal rtf using body title, you can switch from edit mode to print preview mode. This will expand all the instructions. If you were to print them, they would also show up.
Another choice is the modify the pagno style. The default page numbers show up in the "header" section of the rtf doc. And then you could see them in edit mode also. You would have to apply the style to the rtf document wiht "ods rtf style=yourstyle" ...
You would not be using a title statement to post pagenumbers, so you would not be using "options nonumber" to suppress the defaults.