Acer :: CMOS Jumper Switch 5610Z

I have a grandson just older enough to be dangerous around a computer. Recently I allowed him to use my 5610Z to make some pictures of himself, etc. Later the family went home far from here. Still later I tried to start the Laptop and "enter supervisor password" would appear each time I tried to start it. I'm never used a password, don't even know how to do such a thing. Naturally I called and he "remembers nothing!"

I'm old, 75, and do not have good vision. I found in the Manual for the Model a page showing "Jumper Settings" and a diagram with the description, 'Clear CMOS Jumper.

Note:
J3 locates at the bottom side of the main board as the red circle highlighted." Fine, I found it physically but don't know how to turn it on or off. I've pulled batteries to clear CMOS before but never had to deal with a switch.

Would I be correct in using tweezers and just pulling the square object up, or try to turn it?

I miss my Acer. Two years, never a blue screen, nor freeze up. I want it back running before I kick the bucket.