How do you use -toolbar to load a toolbar from a partial customization menu?

I've tried to figure out the pattern of how the command works for inputting partial customization menu toolbar names but I'm unsuccessful.

You should be able to show and hide partial customization menu toolbars with the -toolbar command because it can hide all toolbars including my partial customization menu toolbars currently shown.

I've tried the toolbar menu alias (defined in the CUI command) and the name (refer to this link to the same image embedded below) and none work.

Any suggestions/solutions?

Thanks!

Doug