You just need to place most of the content in the mega drop-down menu (https://take.ms/viuNFX) of these menu items (https://take.ms/r0cqJ). So then the scroll will be automatically enabled.
Thanks for your info.
Unfortunately, that is not the solution, because we use the Demo Default.
Can you please check how this works in the backend of the demo Mega electronics, and share the solution with us? So we can implimentate this.
Many thanks!
Here is a video: https://take.ms/N62ZT , you can see that most content is situated in the dropdown HTML Block, thus the scroll is automatically enabled due to the height of the content.