The mouse is moved on the [group], the group selection screen is displayed.
If a group is clicked, a list will be load, and the first contents of a list will be displayed on the contents column.
When displayed position and magnification are set, map will move & zoom.
When the contents column is not displayed,(when mark or map mode) change to view mode,and display a contents.
The mouse is moved on the [List], the group selection screen is displayed.
A clicking a contents which you want, displayed a picture or text on contents column.
The map moves to center which a icon indicated position of contents.