While it isn't exactly what you want, I made the GenTags plugin which lets you have multiple fields that act like tags. You would still need to use the tags field to make the table of contents but you could use another field for the other organisation.
I am very slowly working on a new widget that could replace the table of contents macros and it will hopefully allow you to use things like fields to set what the children of a node are, but it is going to be a while before that is ready. -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/tiddlywiki. To view this discussion on the web visit https://groups.google.com/d/msgid/tiddlywiki/f021c7b3-72e0-4660-862e-4b76903d76ae%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.

