The latest version of Notenik just made it through the Mac App Store review, so you should be seeing it show up before long.
This release contains the following improvements:
- Fixed a problem that sometimes prevented a request to open a Collection from making use of an existing Window in which the Collection was already open;
- Also added an option to filter search results, so that only the matching Notes show up in the List tab.
Thanks to those who suggested/requested filtered search results, and thanks to @ThePrinter for sterling beta testing!
As usual, all the details can be found in The Knowledge Base.