Multicheck Checkbox Checker
Allows you to check multiple checkboxes quickly by CLICKING & DRAGGING or even quicker with an ALT+CLICK & DRAG area select. You may need to refresh your browser window after installation for this extension to work. *UPDATE* Here is a short user-created video tutorial describing how to implement this extension. https://youtu.be/MazQnq-RcC8 Feel free to post any comments or bugs, but unfortunately the developer will not be able to address any of them at this time.