Reserve Instrument Time (Side Menu)
Click on the Reservations Tab on the menu to the left.
Choose Schedule and click on the Filters button just above the calendar.
type in the name of the instrument you want to reserve.
Change the calendar/timeline view with the menu on the right. Calendar by month or week are very useful.
Drag on the calendar the time you want to reserve. A menu on the right will appear. Use this to adjust the time.