Tap 'Manage' to manage the application & it's settings.
Tap 'Manage Keyword Sets' to configure groups of keywords.
Tap '+' to add a new set, or select a group to edit.
Tap '+' to add new keywords, or select a keyword to edit.
Editing a Keyword
Text - is the text entered into a note.
Button Label - is the display text, otherwise the above is used. Irrespective of button display label the 'Text' is entered into notes. Useful for having short easy to read buttons (e.g. 'PEFA') but full text (e.g. 'Peregrine Falcon'.)
Text Group - organize text into colored groups. Useful for grouping concepts; Verbs / Subject / Object, Actions, Places, etc.
Text Style - make certain buttons stand out, or not.