Thanks, but unfortunately it doesn’t seem to want to add a field_group alongside a couple of extra fields from another form:
$options = array(
'fields' => array( 'field_5d2870ee42a46', 'field_5d28712c42a47' ),
'field_groups' => array( 926 ),
);
It shows just the two ‘extra’ fields rather than the fields and the field group.
