Left Click Performs a left click with the cursor the next time a click is performed.

Right Click Performs a right click with the cursor the next time a click is performed.

Double Click Performs a double click with the cursor the next time a click is performed.
 

Free Drag Click Performs a real time drag click with the cursor. With the tool enabled, the first click starts the drag and the second click stops the drag.

 

Straight Drag Click This performs a straight-line drag click with the cursor after two more clicks are performed.