User Sync Additional Fields “Gruppen” (Groups)

Hi, i just bought your premium version to sync my individual WP Userfield “Gruppen”(Groups) to my individual mailchimp Group “WP_Groups”.
Once i started, i used the “Groups”-Plugin and the “Groups for Woocommerce” to do segementations and pricings. I synced the groups with the plugin “Groups2Mailchimp” to mailchimp but this plugin is not available anymore.
So i suggested to be able to do this with the premium plugin.
If I start to enter “Gruppen” or “wp-groups” or anything like that into the user field, the user field isn’t showing anything. Cant find a match. Also at the MAilchimp Field I can’t see the mailchimp group – just “Vorname” and “Nachname”.

Thx, for helping!