Mohammad's 'SNR:search and replace in tiddlers' might do it retrospectively? I don't think autocomplete in the way you describe is currently available but they love a challenge on this forum. Maybe start a new thread?
-- 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 tiddlywiki+unsubscr...@googlegroups.com. To post to this group, send email to tiddlywiki@googlegroups.com. 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/b843438b-7255-402e-acb2-ce0b6b13280d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.