Thanks for stopping by the Apple Support Communities. From your post, I understand that you're trying to edit some group contacts but have only managed to do so individually. I'm happy to help!
Group Contacts can be viewed on an iOS device, however the group (and included contacts) cannot be managed or edited, other than deleting the individual contact from your phone's Contact app entirely, one at a time. If you'd like to keep the contacts on your phone but remove them from a group, remove an entire group, or remove more than one contact at a time from your iPhone, you can do so using iCloud.com.
Thanks for stopping by the Apple Support Communities. From your post, I understand that you're trying to edit some group contacts but have only managed to do so individually. I'm happy to help!
Group Contacts can be viewed on an iOS device, however the group (and included contacts) cannot be managed or edited, other than deleting the individual contact from your phone's Contact app entirely, one at a time. If you'd like to keep the contacts on your phone but remove them from a group, remove an entire group, or remove more than one contact at a time from your iPhone, you can do so using iCloud.com.
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how do I delete group contacts,
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