Could you consider to use DataTiddlers? The only required change would be to add colons after each tiddlername in your list and set the type of your tiddler.
Then you can use: <$list filter="[[List of datasets]indexes[]sort[]]"/> -- 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 http://groups.google.com/group/tiddlywiki. For more options, visit https://groups.google.com/d/optout.

