How to get the command key into place.

By examining the underside of the key cap—assuming it is not damaged*— you should be able to tell which side would be inserted into the space first, then the last movement is just to press down to “snap’ into place. Usually one end slides in place first “down and to the left”. If it looks damaged on underside, you may need a replacement.

*If you can’t tell if it’s damaged, pop off another one and check it for structure.

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