Add an arrow on the top and bottom of the scroll bar
When loading training for athletes, pulling the scroll bar up and down often involves moving multiple weeks at a time. Adding an arrow on the top and bottom of the scroll bar would allow control to be increased so as not to overshoot the intended week each time.
1
vote

There are two arrow buttons above the calendar, near the date, that can be used to scroll the calendar forward and back one week at a time.