Good resources https://themes.artbees.net/docs/column-settings-wpbakery-page-builder/

For each of the individual columns select the pencil edit button > Response Options. For the bottom mobile device leave Offset set to ‘No Offset’, but set the width to match the column width. So for instance for a 4 column row set it to ‘3 columns’ – 1/4 (its the 1/4 which we want, […]