Dear Opera Team,

I would like to suggest a feature that would greatly improve user experience and prevent accidental loss of tabs or pages. The feature involves the ability to lock individual pages or groups of pages to avoid accidental closing or deletion.

Additionally, it would be very useful to have an offline mode for these page groups. For example, when reading novels or other content, I often group many pages together. If I lose internet connection, currently these pages fail to load because there is no offline mode available for the group. Enabling offline access for such groups would enhance usability significantly.

Thank you for considering this request. I believe these features would be valuable additions to Opera.

Best regards,