Left click on icon
Change file selection (mouse may be dragged)
Left click + Right click
Left click on icon and whisk to the left
Select all files / Unselect.
Double click on empty space of list or on information panel at the bottom
If keeping Shift – changes selection of folders also.
If pressing Alt – shows properties of the current folder.
Double click on selection panel on information panel
Unselect
Ctrl+Click
Select file
Shift+Click
Select file range