If anyone finds that preparations for spells simply always show the spells in the action tab regardless of what you set the preparation/actions setting to for it when you switch to combat/actions it will still be displayed. This can happen when for whatever reason (no idea how it happened in the one char in a test campaign I had) your power group "prepared" number has been set to 0 (blank). No idea how it happens but if it does you will never get an unprepared spell not to show in combat/actions in the actions tab.