XD02 Enhancement

I've created a new button on the XD02 toolbar with enhancement CUSTOMER_ADD_DATA. This works fine, but how can this screen be accessed through batch input?

I've created a corrosponding batch input enhancement (CUSTOMER_ADD_DATA_BI), but the initial XD02 BDC screen (SAPMF02D, 101) still has no mention of my custom screens. Is there anything I've missed out, is this even possible?

Thanks