Group Membership - charge for additional members

The way I understand the group membership to work is that you are able to add in as many group members as has been specified in the back-end. However, there's no extra charge for the extra users. It just comes with the group membership. My client is wanting to offer group memberships, but is wanting to charge for each additional user. Is there anyway to do this? If that functionality is not currently there, is there anyway it can be added?
Thanks!

Hi Sarah

Unfortunately, we don't support price for each group member at the moment, so it's not possible

The only way in this case is defining multiple membership plans. For example:

- 3 Users: 300$
- 5 Users: 500$

And so on...

Regards,

Tuan