Tap the Week button next to the date button to navigate to a date within a one week span. Swipe the dates left or right to change the calendar week.
The blue dots under the day number indicate the number of sessions on that date. For dates with no sessions, there are no dots. For 1 session, one dot. For 3 or more sessions, 3 dots are shown.
To see dates a month at a time, tap the date button in the middle of the title bar to pull up the month calendar navigation view.
This view shows today's date in red and the date selection in blue. When you change the date selection, the session and set overview is shown for that date. Tap a set to navigate directly to the session that contains the set.