Part II
I'm still not the original author.
Here is a little more information.
When I signed on as the host, the system was in Design Mode. I did not realize that it was a toggle and somehow had it set to the positive for the host account.
When as Host, I changed it to Edit Mode, and the "Edit Text" link reappeared. I logged out then back in again as host and it stayed in Edit mode so that's one down.
When I signed on as the Admin, the system was in Edit Mode. So that explains why that role never had a problem.
When I signed in as an "Editor", (at a time when Editors did not have page edit rights) I couldn't see the control panel so I don't know if I was in Design or Edit mode.
So I signed back in as host and gave editors page edit rights, then signed back in as an "Editor" hoping that the control panel would show Design mode and thus define why my "Editors" could only edit the text module content when they had page edit rights.
Unfortunately, when I signed in as the same editor user account which I've used throughout this test but who now had page edit rights, I found that the page was in
Edit mode and so, no explanation has yet to be found to my primary difficulty.
When accounts with my "Editor" role log into pages where they do not have page-edit rights, they do not get the "Edit Text" link on text/html modules where they should have module-edit rights. And this isn't just another symptom of the Edit/Design mode chaos.
I'm off to study the source code to the Text/HTML module if I can find it. Let me know if this makes sense to you.
Peace and Gratitude,
Colt