Thanks. I'm using Modern Style (updated Windows 7 style). After trying out some Configure Menu options, I learned that two Modern Style options will significantly impact what shows up when right-click is used. The two Modern Style options are:
"Use Windows 10 style all programs list rather than Windows 7 style"
and
"Open all apps list as a menu"
If both of these options are set to Off then right-click delivers a long list of choices (without any Start11 items)
but if either (or both) is set to On then right-click provides Start11 items.
I have been using the former (both options Off) since I wasn't crazy about the index separators (#,A,B...) within the list. But turning on "Use Windows 10 style all programs list rather than Windows 7 style" will let me hide an app.
Also as an aside, if either option is On then "Place folders at the bottom of the list" is ignored.