The Dropdown supports associating data by selecting from existing data in the target collection, or by adding new data to it for association. The dropdown options support fuzzy search.

Controls the data scope of the dropdown list.

For more information, see Set Data Scope
Controls the sorting of data in the dropdown.
Example: Sort by service date in descending order.

Restricts a to-many relationship to allow associating only one record.

The title field is the label field displayed in the options.

Supports quick search based on the title field
For more information, see Title Field