Hi Symo,
1. Does not support tab markers.
2. You can create the default template which has header and footer, then load the template for editor when page load.
3. Does not spport paging.
4. double click on the control which editing in edit area, it will open the properties dialog to allow you edit the style. Also, you can select the paragraph/control from the bottom bar, it will open the context menu, you will find the properties menu to open the properites dialog.
Regards,
Ken