Created Keyboard Shortcuts for Zooming In and Out of Program Monitor Not Working

I'm working on Premiere Pro 24.4.1 on a Mac.  I created shortcuts (or at least I tried) to be able to zoom in on the Program Monitor.  Control+Z to zoom in, Control+X to zoom out, and Control+F to fit.   They are listed.  They are visable.  Control+F works, but the zoom and and zoom out do not.

Any ideas what I could be doing wrong?

Thanks!

Mod note: Title was changed slightly