Hi there,

The page builder only contain options to change the margin and padding for mobile screens. You can change this by editing a:

- Page Builder Row

Hover the wrench icon in the top right of the page builder row, click "edit row" and inside the "Mobile Layout" panel you can change the margins/paddings for this row.

- Widget

You can change the padding of each widget by editing the widget, inside the "Mobile Layout" panel you can change the padding.

There are no settings to change specific elements of a widget for different type of screens, like the Elementor page builder have for example. 

If you would like to change something on mobile I can help you by providing you some custom CSS that will do this, but I have to know what you would like to change exactly.

Please let me know.