ToolTipText: -

SecondLast prev.htm  - Click to load last background image or Opp.Click to reload grid.

Besides its use to change the background images, the of this command is used with the new master grid feature and it is activated after using the opposite mouse button to click on an element. When the PopupMenu appears, it displays the name of the file for the underlying grid and if this is clicked that particular grid is loaded.

In effect this "Prev" command simply reloads the second file in the Recent File list.