First: Purchase Additional User Add-On
First, you will need to purchase the additional user (assuming you have not done so already).
Step 1: Click on the Badger icon and go to Settings
Step 2: Click on Billing –> Purchase Addons
Step 3: Click the green shopping cart under Additional User
Step 4: Confirm and pay
Second: Invite Additional User
Next, you will need to invite an additional user to join your account.
Step 1: After purchasing an additional user using the steps above, go to Account --> Account Access
Step 2: Click 'Invite User'
**If you do not see this option, it means you have not yet purchased an additional user. Or you have used all your purchased users and need to buy another.
Step 3: Fill out the form with the information of the user you are attempting to add.
Step 4: Inform your invitee that they should receive an invitation to the email you filled out in the form.
Step 5: Your invitee will follow the link in the email to finish creating their account.
Voila! That's all there is to it.