Multiple Selection
To select a sequence of students, click on the first student in the range, then hold down the Shift key. With this key held down, click on the last student in the range - the entire range will now be selected.
To select multiple students not in sequence, hold down the Control key on a PC or the Command key on a Mac, then click on the students you want to select.
You can also deselect any student by clicking on his or her name, with the Control or Command key still held down.
If you want to select every student in the current class, just click on the Select All button at the bottom of the screen.