sync user meta fields with sib contact attributes

Hi,

thank you for a great plugin. I was wondering if it is at all on your radar/roadmap to add the functionality to sync not just the basic fields, but also added user fields? I mean being able to map extra user (meta) fields against your contact attributes?

Different types of WP users could receive different types of newsletters for instance. I have several “user settings” being both present in WP and in your “contact attributes”, which I would like to keep in sync. It would be great if the SIB plugin would support this, without the need for custom coding.

Thanks!