Which handler controls which matter fields appear when selecting a matter on the new workspace form?

• A. MattersOnPicker
• B. MattersOnClientPage
• C. UserViewRenderer
• D. ClientsOnPicker

Answer: (A)

The set of matter fields that appear after you select a matter on the new workspace form is controlled by the MattersOnPicker handler. This handler ties the matter picker to the dynamic display of fields, so choosing a matter triggers the appropriate fields to show up on the form. The other handlers serve different UI roles: MattersOnClientPage would affect what appears on a client page, not the workspace form’s matter fields; UserViewRenderer handles how user views are rendered; and ClientsOnPicker manages client options in a picker rather than the matter-specific fields.