You can manage access levels of team members, invite new members, and remove them from the Account Members section of the account administration.
At the bottom of your left side navigation click on Account Settings (if you don't see account settings, you aren't an administrator on your account. You will need to ask your system administrator to add you as an administrator ).
Click on the settings button under the Members section
On this page you will see all the members that currently have access to your account.
You can click on the dropdown beside their name to make them account administrators or members.
Click on the "remove member" link to remove all access to channels and guides in your account
HUB+: You can view all access levels (including channels), detailed activity and guide access, and more for each member if you have a VENTURE subscription. You can learn more from your account subscription settings
Invite new members by clicking on the "Invitations" link near just under members.
By default, new members have access to all open channels in your account. If you would like to add them to additional private channels, click on the "You can give them access to additional channels as well" link and type in the names of the channels you want to give them access to.
Enter the emails of people you want to add. Be sure to click on the dropdown with their email address to add them to the invitation.
Add a short note to your invitation.
You can invite new people also as Admin to your Hub, in that case don't forget to check the box labeled 'Invite new users as Admin for the Acme International hub'
Click send
The people you invite to your account will receive an email with a link to join your account.