How to switch profile pic to a previous profile pic?

This is simple: I want to change my profile picture. There are about 10 "profile pictures" in my "profile picture album" and switching between one or another used to be easy but doesn't appear to be possible anymore.

I tried clicking my current profile pic to be taken to the album of profile pictures. I click the one I want and it takes me to that pic's page. But despite looking everywhere around this screen there doesn't seem to be any option for "make profile picture" like there used to be.

I also tried clicking "change picture" which takes me to the screen where you can do one of four things: 1) edit thumbnail, 2) remove profile pic, 3) upload an image from computer or 4) take a picture (with webcam I assume). There is NO OPTION for changing to a different profile picture!! (at least from what I can tell...) And no, I do not want to re-upload old photos everytime I want to change pics. It used to be so simple, why did it change?

I also tried