There are two ways you can add a Continu user as a Collaborator:
User Profile
Step One: Within Admin>Users, search for the user
Step Two: Select user profile
Step Three: Select 'Yes' within the 'User is a Collaborator'
Step Four: Click 'Save User' to save the changes. Note: The user will need to log out of Continu to have access to their new collaborator role
Add Collaborator to Content
Step One: Search for the content that you would like to add a collaborator to
Step Two: Click on the content title
Step Three: Navigate to the content Settings
Step Four: Select Add Collaborator
Step Five: Search for the collaborator(s) you would like to add
Step Six: Click the + button to add collaborator(s)
Step Seven: Click the Update button to save the changes