Top-level statements added with the 'add statement' button(s) are currently added to the same section of the item view as the button. This is not always correct - a user might click the 'add statement' button in the 'Statements' section, and actually search for and add a value belonging to an 'Identifier' property.
Acceptance Criteria
- Insert newly-created statements in the sections of the Item View according to the configured statement-grouping rules