I’m in the middle of an introductory WordPress course and was frustrated when I came across this issue while in the midst of the course. I tried the workarounds noted in previous post(s), but they either didn’t work or were too technical for this non-techy.
However, when I got to the section of the course on the (Appearance) Customizer and specifically on menu customization, I was able to get parent attributes to start appearing in the page editing section. Essentially, I used the menu customizer to create a hierarchy within the navigational menus on the site. Once I did that and returned to page editing, the parent attributes option appeared. That said…It’s important to note that the hierarchy I created in the navigational menus was not (yet) represented in the parent attributes. I still had to set up the hierarchy I wanted in the parent attributes as well…particularly in order to get the URLs to reflect that hierarchy.
