Thanks for your reply, I’m excited about the potential of the new search tools, and that there’s a possibility for this extra feature to be added!
To expand, I’m a huge fan of tags for sorting data, and in particular being able to conduct an ‘and’ search of them, because it allows a user to home in on a small subset of appropriately tagged notes very quickly. This is the functionality I’d like to see added to the ctrl/cmd-clicking on a tag, which in the current version of Joplin does nothing.
I think your idea of a ctrl-click triggering a search is great, because it sounds fairly straightforward to implement, and seeing the resulting query in the search box will help users learn about how search queries are constructed. I guess something a little more complex than simply appending the tag search might be needed, to avoid adding redundant terms to the search box. Also, some manipulation of the GUI might be in order, to highlight all the selected search tags in the tag list.
If you need any more thoughts on the spec I’ll be happy to respond.