display text if user is in special usergroup

Hi,

first of all, I posted this question in the german section, but I got no reply. So I try it here again and hope to get an answer. The link to my original german post is: www.joomlapolis.com/forum/180-cb/234647-je-nach-usergruppe-text-anzeigen#285517

And now in english:
The users in my CB are in different joomla user groups. This groups are not displayed in the CB. I want to show a special text, if the user is in a special joomla user group.
I found www.joomlapolis.com/documentation/18353-using-substitutions-throughout-cb . But there is only the usergroup in CB. But I habe no usergroup in CB. How can I check the joomla user group or how can I integrate the joomla user groups into CB?
Thank you so much
Nadja