Feature Request: Implement Scroll Lock for Modal Popups

Feature Request: Scroll Lock for Modal Popups When someone is viewing a Gamma presentation online and a modal popup opens (such as for interactive or embedded content), it’s currently possible to scroll the background Gamma page while the popup is open. This can easily confuse viewers, who may expect to scroll the popup content but end up moving the main Gamma presentation underneath instead. Recommendation: Add scroll lock to modal popups, so that when a popup is active, the background Gamma page remains fixed until the popup is closed. This would improve the viewing experience and aligns with standard web practices. Thank you for considering this improvement.