How to show NumPad on the Keyboard Viewer I use a software which requires keyboard shortcuts on the NumPad.  The number keys above the keyboard won't work.  On a MacBook Pro, I used to be able to open the on-screen Keyboard Viewer and click on the keys, but it's not working in Mojave.  Now the on-screen keyboard mirrors the laptop keyboard, and only shows the NumPad if I connect a full-size USB keyboard.  How can I get the full-size virtual keyboard back?
The can be done via a custom panel in the Accessibility keyboard.