For licence users only.
There can only be one team admin at a time. However, if you're a licence user and you’d like your colleagues to be able to spend from the same budget, you can invite them to join your team as users.
Here’s how to do that:
1) Head over to the ‘Account’ page
2) Scroll down to the ‘Manage my team’ section
3) Enter their email address into the ‘Invite new team member’’ box and hit ‘Invite’
The new user will receive an email inviting them to join as a team member, along with instructions on how to do so.