This screen lists the reminders that you have scheduled.
Select the item from the dropdown to show the reminders scheduled for it. If you wish to narrow the list to one catergory, you can select the category from the menu bar (currently shows ALL) in the picture below.
To modify a current schedule, you can long click the entry below the dropdown. A new menu will appear which will allow you to delete the selected entry, or modify it.
To return to the previous screen, tap on the arrow in the top left corner.