In Dolphin it was easy for me to add additional editor toolbars and apply them to just the text areas that I wanted using HTML => X where x is the number of the toolbar. Is that possible in UNA using the new foolish html editor?
Now in UNA we have the setup settings of Froala editor directly in Froala app. There you may change the set of the buttons for every mod. Then in text field you may choose theses mods (like Mini, Standard and Full). It is the most porper way.