No option to set programs as executable in Cosmic Files (24.04)?

I've already opened a few issues re: drawbacks in Cosmic Files and keyboard settings, but this one was truly unexpected. Or am I missing something?

I cannot find the option (toggle) to set a program as executable (chmod +x <executable>) in Cosmic Files. When I right click on any executable and select Properties, all I can see are permission settings for user and group. Nothing to set a program as executable.

The function is still available in 22.04 and even in the latest versions of Gnome. Why such a useful function isn't available in Cosmic Files remains a mystery to me...