Why can't I rearrange pictures in this folder?

I want to put these pictures in a certain order. I should be able to do it by just moving them around, right? They act like they’re going to move, but then they don’t. The only sort options I have are “Name, date, type, size, tags, date created, date modified, date taken, dimensions, and rating.”
There are also these options. I wonder if I deselect everything it will let me do what I want, but I’m afraid to mess with it because I have no idea what I’m doing or what could happen.
I don’t see anything that will allow me to flow freely.

Short of renaming every damn file, then re-renaming to get it where I want it, then maybe renaming it again and again I don’t know what the f to do.