If your PleaseSign subscription is for more than 1 user you can add additional users from your dashboard. Adding a user will send an email to their nominated email to create a password and verify their account. This user will then be able to send documents via a branding of your choice, or access templates and document folders that you have permissioned.
Please be mindful that adding extra users when on Entrepreneur, Business or Business Pro plans won’t increase your quota. If the plans aren’t serving your current sending requirements, send an email to your account representative or email@example.com and someone will get in contact regarding a custom plan.