You can also try MasterIncludesPlugin [1]. It is made for shared "settings" but actually all the settings are tiddlers, so presumably it allows to achieve what do you want.
[1] http://masterincludes.tiddlyspace.com/ (Tobias' repository and docs for FND's plugin) -- You received this message because you are subscribed to the Google Groups "TiddlyWiki" group. To post to this group, send email to tiddlywiki@googlegroups.com. To unsubscribe from this group, send email to tiddlywiki+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/tiddlywiki?hl=en.