To navigate to Options, go to ACP → Content → [TH] Covers → Options.
Use covers as Open Graph images This option allows cover images to be embedded as Open Graph meta information for display on social media.
Maximum cover file size This option allows you to set a maximum attachment file size in kilobytes (KB). When users attempt to upload attachments that are over the size specified, they will be rejected.
Allow content owners to create/edit covers This option when enabled allows content owners to create or modify covers if they have the appropriate permissions.