Using 8.1.26.
Modifying a pop window that lets a user choose a path to save a report. Was trying to add a custom property to a File Explorer component with Control+U but nothing was coming up, then tried Control+2 a la tables but still nothing. I right click, go to Customers and instead Custom Properties/Style Customizer like most components I just see greyed out text saying None.
Is my project messed up somehow or do other people see this too? Can I not add custom properties to a file explorer? I can just add it to my root container if needed but it just seems odd since I think every other component does allow this.
I'm seeing the same thing on the same version

Has it ever worked before? (Some components simply don't have them. Or dedicate them to other purposes, like the Classic Chart.)
I don't recall ever trying to use a custom property on a file explorer before so I don't know - it's very possible it never was.
I was just curious if what I was seeing was expected or unexpected. Interesting - I guess I have never noticed another component not having this ability.
Per the File Explorer documentation, there are no customizers available. I also had never attempted to add custom properties to this component, so I had to double check.
https://docs.inductiveautomation.com/display/DOC81/Vision+-+File+Explorer#VisionFileExplorer-Customizers