Some characters not appearing in keyboard viewer
ׁWhen I'm using my custom Hebrew keyboard, I find that some characters don't appear in keyboard viewer.
While this is mildly irritating for some issues, I mapped all of the cantillation characters to option-numbers and none of them appear. Since I don't recall which is which, this is incredibly problematic.
Is there a way to change the keyboard viewer so as to show these characters ?
MacBook Pro with Retina display, macOS High Sierra (10.13.1)