HI Mark,
thanks for the help. I've found a way to list all tiddlers that satisfy some search criteria and transclude them (piece by piece) into a single tiddler (a bit awkward given that I have to query title, subtitle, etc individually). However, that is not exactly what I was looking for ;-)
I thought of the search function like something that hides everything on the left side of the UI (not sure what that area is called) and only shows tiddlers that satisfy the search criteria. I plan to write tiddlers that contain some text or tags and I want to add a search function to the right that I frequently use with the same parameters.
Best, Stefan.