Add grouping by multiple fields as well as the sort option.
Add a way to hide fields that we want to use just reference to group the notes.
Add dependency to the "Pages" because they are not all the notes that we want to see them.
Add the possibility of putting subheader inside another subheader.
Change the "Rich Text" font to the font we use in common texts and notes. (The source of the enriched text is not pretty.)
Good Luck LuckyDroid.