An ORCID ID gives you a unique identifier so that you can get credit for your contributions in exports and downstream systems. You have to register here to get your ORCID ID: https://orcid.org/register
To add your ORCID ID to your FromThePage account, go to your account name on the top right, click 'Your Profile', and then click 'Edit Your Profile'.
Enter your ORCID ID in the blank field.