Add suboptions - Allow the user to add new sub Options to the picker
Only add label - If selected then one field is show when adding sub Options. This field's value is then used for the new sub Options value and label. If not selected then separate fields are shown for both the new sub Options value and label.
Save new additions - If yes selected then any new suboptions created by the user are available for others to select
Hover colour - The hex value (e.g. #ff0000) used when hovering over picklist items
Background hover colour - The hex value (e.g. #ff0000) used when the dragged picklist item is dragged over a drop list.