Each discrete link in Tinderbox is between two objects (note, agent, etc.). It is always directional. At source and destination it can either attach as note level (‘basic’ links) or have anchor text in $Text (‘text’ links).
Any note can have zero or more outbound links (i.e. originating in the note) and zero or more inbound links. Tinderbox action/export codes for links generally address export links but action code has methods for looking at either.
Initially this had me confused as it can read as trying to make links with multiple destinations—which would be a ‘no’, see above.
Storyspace doesn’t do HTML export but you may be thinking of a pop-up Storyspace may show if a note has multiple outbound basic links. This is because Storyspace’s default forward navigation is to follow the first listed basic link, but you might need to chose a different one.
I’m a little rusty on the Storyspace details (@eastgate may correct me) but Tinderbox has no such notion. But you could generate a separate page from Note XYZ’s actual HTML export by making a new note and a new template. The template code would be for a normal HTML page (e.g. as in the default ‘HTML Single Note’ template) with this instead of the ^text^ code:
^outboundLinks()^
We’ll name that template ‘t_links’ as we’ll be calling it by name from the $Text of our extra new note (call that note whatever you like). The note’s $Text should contain only this:
^include(/path/toXYZ,"t_links")^
Note: make sure the default text behaviour doesn’t turn the straight quotes "" into typographic (curly) ones “”, or the code will fail.
How you interlink note XYZ’s exported HTML page with this extra exported page is up to you.
The manual is from an early (v.x?) version of Storyspace for Windows which is no longer sold (though it may run on its original OSs. From Storyspace v3, it and Tinderbox use a common codebase. Checking in the current Storyspace v3.9.0b026 (released 20 Feb 2020, and contemporary to the v8.5.0 Tinderbox) HTML is not supported in Storyspace but Tinderbox can read an Storyspace file so do export that way. The Storyspace v3.9.0 export options look like this, using menu File ▸ Export… ▸ Text:
And the choices in the top pop-up are:
Note: no HTML option.
So you are right historically but no in the current app.