-- the add fixed price item icon can be used to insert a new fixed price billing item entry.

-- the add fixed price billing schedule icon can be used to insert several new fixed price billing item entries, by using a wizard like screen to help generate multiple entries.

-- the delete icon can be used to remove a particular fixed price item.  Note that once a billing item or recognition schedule has participated in a post, the item can no longer be deleted.

-- the edit icon can be used to modify a record.