@Scott-Sumner Thank you for your extensive answer.
I clearly have to do lots of reading before being able to do something one would expect to be intuitive!
@NippurDeLagash: “just position the cursor” is the very thing I shouldn’t have to do. It’s already on the line!
@Gogo-Neatza The plug-in manager infinitely insisted it needed updating.
Once I ignored it, a couple of attempts at installing this plug-in finally worked.
It appears to add two menu entries… I assumed they’d be checked entries enabling the behaviour but they’re the commands…
So then I read @Scott-Sumner’s links which all mention the plug-in too and finally a dozen steps that I need to follow to finally get this basic text editor functionality:
https://bitbucket.org/zastrowm/notepad-visualstudiolinecopy
So now I can join the throng of people who can get on with their work sensibly.
I do, however, remain in disbelief that a user should have to go to the lengths I have to simply cut and copy lines efficiently! I’ve been ignoring Notepad++ since 2004 because of this shortfall (and our fixed-width fonts not being fixed width), which leads me to ask the community again:
Would it hurt to fill that hole?