How to build a Private Social network with EasySocial with Registration code?

Hello team,

First off, YOU GUYS BUILD Amazing product! I switch from JomSocial to EasySocial and loving it!

We are trying to build a private social network between friends and family using EasySocial.

I wonder how to create a private registration page that require pre-define code for registration?

Use case:
1. We sent out registration via email to welcome friends and family to register to the website
2. When user register, they need to complete all required filed in the profile information and put in registration code.
3. Once the code accepted, then sent user to EasySocial Page.

If the feature is native to EasySocial, please kindly share any steps / documentation to do such. I believe this is a very useful use case for anyone who want to build a private social network.

That will be wonderful if the feature was build in as part of the EasySocial Solution. So many of us out there want to build a private social network between friends and family!