list the anchor names on the page
When linking to an anchor link on the page, the list of assigned anchors should show enabling me to choose the right one rather than remember what I named them.
Randall Rensch commented
If I'm understanding you correctly, you can determine this pretty easily. Scroll to the point where the target anchor is, and hover over it. You will probably see the anchor string in a little pop-up. Otherwise, check your browser's status line.
Further tip: Internal links are case-sensitive, so to keep life simple, always type them in upper case or always in lower case, whichever you prefer.