This will normally be done by the Client Admins, but can also be done by Cooley staff.
Hovering over one of the unassigned cards with your mouse, on the Respondent info tab, will show the option for Assign page:
Assign Page will allow you to assign a Collaborator. Collaborators will be added and listed under the Client information on the Overview tab.
Click on Assign page and you will get the following option:
Choose from the list of your team members.
There can be only one Collaborator per card. To change the Collaborator shown on the card, select another person from the list. There should be a tick alongside their name to show they are the chosen Collaborator for that particular card.
In the top right hand corner, there is an option for All Collaborators, click on All Collaborators and choose a collaborator to filter the list to show what cards they have been assigned to.