Layout up&down scroll?

Doesn’t Layout support up and down scrolling?

There are no scrollbars itself at the layout, but the layout cell content can be scrolled according to it’s sizes:
Could you please clarify what scrollbars are you meaning?

For 1280x760 resolutions, the contents of the form are not displayed on one screen and are truncated to the bottom. You must create a scroll bar on the right side of the screen, but it is not.

Could you please, provide a snippet, where the problem can be reconstructed locally.
The following example displays well for me:
https://snippet.dhtmlx.com/knjtjghs