The ActionLocation type exposes the following members.
A primary action, adding data. This will make the action show up between add and delete, next to other add actions (if any).
A primary action, deleting data. This will make the action show up after edit and add actions, next to other delete actions (if any).
A primary action, editing data. This will make the action show up as one of the first, next to other edit actions (if any).
A primary action, doing something besides from add, edit and delete. This can be a view/report actions etc.