In order to begin commenting on a diagram, what must be done first?

To begin commenting on a diagram, the initial step involves adding a collaborator. This is essential because commenting functionality is tied to collaborative work within the platform. Adding a collaborator enables others to have access to the diagram, thus inviting their input and feedback.

Once collaborators are brought into the diagram, they can view, suggest changes, and add comments, effectively enhancing the collaborative process. This initial action sets the stage for collaborative discussions and ensures that multiple perspectives can be integrated into the diagram.

Changing diagram settings, finalizing the diagram, or sending a notification may be relevant activities in the broader context of diagram management, but they do not directly initiate the commenting process. Collaborators need to be added first to construct a communicative environment within the diagram, making this the necessary first step.