To enable sharing features in the magazine settings:
Go to "My Publications" in your account.
Locate the magazine you want to edit and click on the small "Pen icon" next to it to access the editing options.
In the editing interface, find the section labeled "Basic Information" and activate the Social Sharing option. This will enable sharing from the preview link and in embeds.
To enable sharing from the direct link, activate Social Sharing under the section "Player Settings".
If you would like to learn how to share your magazine via social media, refer to the instructions provided here.