[Plugin: Nmedia WordPress Member Conversation] display name vs username

Thanks for the plugin.

1. How do I get it to use the public display name instead of the username?
2. I am considering buying your pro version for the admin panel access. How would it work on a multi site set up where a subscriber is a member of different blogs. Will all conversation histories roll up in to the same admin panel for the subscriber? Or will the subscriber have to go to the dashboard of each site separately?

Thanks.

https://www.ads-software.com/extend/plugins/wordpress-member-private-conversation/