A search option would be an edit text widget in which you type your search criteria, and below that edit text widget would be a list widget with a filter getting a list of all tiddlers matching your search criteria.
Iâd suggest that for each item in the list, you have a button that opens up the related tiddler in another modal dialog meant for editing a tiddler. I think it is good practice to have that separation between the dialog/tiddler that searches and gives results, and a dialog/tiddler with widgets for editing.
That said, from what Iâve seen, youâll be editing the text of that tiddler with an edit text widget. You wonât have access to the formatting toolbar for editing the tiddler. My attempts at trying to do that have all resulted in the red dialog of death (javascript errors).
But if editing the text of a tiddler with just edit text widget is fine, then I think the approach I suggest above is very feasible.