Okay...

You were partial right.
Well, you were right.

I got it working. It only works IF:

1. The only shortcut that has the shortcut key set is located on the desktop.
1.a You...

That specific one (the attached screenshot) is on my taskbar, in a toolbar.
I've tried desktop shortcuts.
I've tried pinned taskbar shortcuts.
I've tried shortcuts in toolbars pinned to the...

When I right click a program, and click on "properties," one of the options you can set is a "Shortcut Key."

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I have done this for a few programs, however, when I press the shortcut...

I found my way to this site trying to do the same thing, move the icons closer to each other. When I Google'd "How to adjust icon spacing/padding Windows 10" I opened the first 3 tabs of results. ...