The Timetable Structure is common to all categories. If you have a 10 day timetable, it is it for all categories and cannot be modified for different categories.

 

Day Names are common across all categories.  You cannot have a different set of names for different categories or resources.

 

You can vary the number of sessions per day for each category.  
One Category might have 6 sessions based on 6 periods per day, another category might have 14 sessions based on half-hour time blocks.