After enabling the extension - the workspace you last visited will be selected for you by default.
To begin capturing, click on "select project" dropdown, and then select the project you want to add the edit request to.
Note: If you are a Collaborator or a Guest role in a workspace, and you do not see any projects, it might be because you were not added to any. Please reach out to the Workspace Owner to be added.
If you a member of several workspaces, you can always change your workspace to a different one, as per your needs. Here is how.