Option to view calendar/ appointment book to show ONLY working days.

option to view calendar/ appointment book to show ONLY working days. 

for example a  practice that only operates on Mon-Fr will not need to see that extra two columns of Sat & Sun on the book in week view

and for practice that operates Mon - Sat. in the 2-day view, the book can show Sat and Monday (the next working day) instead of Sat and a blank Sun.