On your Homepage

>Click on Manage Projects
> Then click on project
> Now click on members
> Add user by clicking on Assign Members.

If you’d like to add a user who is not already on Buildonnet.com click on Add User button on the top

On your Homepage

>Click on Manage Projects
>Then click on project
>Now click on members
>Add user by cllicking Add User
>Enter the details on the fields and submit.