Corner Priority not Showing on Individual Views in Ignition Perspective

Hi,

I want to set different corner priorities for a different screens in Perspective, but I only see a corner priority setting in the "Shared Settings" section of the Page Configurations. According to screenshots in the user manual there should be Corner Priority selector on each screen that lets you choose "left-right", "top-bottom", or "inherited", but that doesn't show up on my screens - example below:

Is there a setting that I didn't toggle?

What version are you using?
I see it on mine and I'm also in 8.1

I also wonder if it has to do with the screen you are viewing it on (mine is below 'Page Title')