Right-click on the Start Button. From there, select “Open” (for yourself) or “Open All Users”. A Windows Explorer window will open. From there, enter the “Programs” folder. From there, drop in your desired shortcut. You may need to be administrator to do so.
I should add that I am showing you what I see with the Classic Shell addon for Windows 10. It may be different in stock Windows 10.
Ah, yes, that (making sure to be right on top the Start Button when I release the mouse button) adds the program shortcut to the top of the Start menu (Win 7) or adds it as a tile (Win 10 Pro), but, the program (or shortcut) still doesn’t show up in “All Programs”. Which is where I want some of these so as to keep the tiles in Win 10 Pro, um, not so numerous...