Drag and select

1. press CTRL and select multiple elements by clicking.
2. press CTRL and click same elements to disSelect. (workes for one element at a time drag select wont disSelect.)
3. press Shift and select continuous elements in a row.
4. press CTRL + A and select all element.
5. Press ESC to disselect all elements.
6. Drag (and make a rectangle) and all files in the area are selected. (calling Drag and select)
7. press CTRL / SHIFT and then Drag and select to append your selection.
8. checkboxes are used for internal implementations.