Hideable Sidebars

Hello,

GeneratePress is amazing, highly customisable theme, but there's one thing I'm missing right now. When on tablet or mobile, the sidebars move automatically to the bottom right under the content. I think it would be amazing if there'd be an ability for 'hideable expandable sidebars' just like the menu is.
On mobile devices sidebars would shrink to the side (lets say 40px wide bar) and when the user would click on it, the sidebars would expand.

Is there any solution for this right now? Are you planning to integrate such function?

Thank You,
Mark.