The Tree is the directory structure where you drag files to drop them. Dropping files into the tree structure causes the files to be moved. If you press CTRL while dropping the file, you will get a copy instead of a move.
Usually you will be dragging the current file or some files from the File List on the left side of the screen. However, the Tree will also accept drops from any other file management program such as Windows Explorer.
The Tree responds to right-clicking with your mouse, bringing up the following pop up.
Here is what all the options do:
Shows amount of disk space used. Patterned off of XDiskUsage. Boxes are sized relative to the disk space used.
- Click on a box to show its information.
- Double click on a box to drill down.
- Double click on the left most box to go back up.