Acymailing integration and customer profile

Is it any way to add phone and other custom fields to acymailing? Now system adds user to acymailing but without phone, would be good to be able to add other fields to acymailing.
Also I fount that there is no any interface to customers, this is really missing feature. To be able to see customers, their profile and booking history.

Made integration of custom fields myself.
By the way, it would be great feature if it can be done as native functionality. It can done quite easy, just add checkbox to field 'export to Acymailing' and export checled fields to Acymailing field with same name.