How to give user access

Giving access to a friend or someone to your panel and build together a server.

On your Infinity Panel at Server Controls 

go to Users tab

then New User

Input the email of who want you to invite.

And setup a permissions/access to a user you invite.

Note: Be careful who you are setting a permission/access especially you just know or a person can't be fully trusted.

And invite your friend that also want to setup and build together a server with you.