SeatData's compare feature is unique on the web, so we'd like to describe its usage.
In the practical interest of saving space, we have decided to use icons for the tools used in our comparision feature. You will see these icons above each section's photo view, and on the comparison page itself. They are as follows:

  Flag (select) for comparison. This adds the view to the compare page.
   Goto compare page. Use when you are done adding views using the flag icon.
   Remove (de-select). This is used on the comparison page to remove a view.
  List only. This is used to temporarily hide the photo for a view.
  Display. This is used to unhide a photo for a view.

You may compare any photos that have a flag icon. Compare different arenas if you like. The compare page also allows you to change the viewing size of all the pictures flagged, as well as to list only, display or remove them all.