What you are asking is pretty reasonable. Those properties must be easily accessible from the note itself. Due to space constraint & our goal to keep things simple, we haven't shown those info directly on the sticky note in Notezilla . This particular feature is already in our list. We should do something about it in future releases.
Editing is still easy. You can press Ctrl+T from the sticky note to view/edit tags. And you can use "Stick to memoboard" to view the sticky note's memoboard.