e_Modifiers
(table) A table containing three boolean values that describe which modifier keys were held down while the mouse button was pressed. A modifier key is a key that can be held down while button is pressed, to "modify" it.
There are three true/false values in the table, one for each type of modifier key on the keyboard: shift, ctrl, and alt. You can access these values as e_Modifiers.shift, e_Modifiers.ctrl, and e_Modifiers.alt.