Type: string (table name) Scope: Proc.
This value contains the name of the table in which to store an MM relation. It is used together with foreign_table.
The database field with a MM property only stores the number of records in the relation.
There is additional information in the MM common property description.
Select field with foreign table via MM table¶
'columns' => [ 'select_single_15' => [ 'exclude' => 1, 'label' => 'select_single_15 foreign_table', 'config' => [ 'type' => 'select', 'renderType' => 'selectSingle', 'foreign_table' => 'tx_styleguide_staticdata', 'MM' => 'tx_styleguide_elements_select_single_15_mm', ], ], ]