You can add Member with the following steps.
1) Go to Members page.
2) Click on "Add Member" link.
3) Enter name, company, email address of Member.
4) Choose a plan and options that you want to assign to this Member.
5) Enter start date and end date. You can leave end date blank if it's not determined yet.
6) Enter additional one-time charge if necessary.
7) Click on "Add Member" button.
By clicking the "Add Member" button, an invitation will be sent to Member. Member needs to accept the invitation before joining your space. You cannot charge or send invoice until Member accepts the invitation.