You can selectively show/hide content based on the user's resolution by adding classes to some of the column blocks. There's an option called Class and and you can use either hide-low-res or show-low-res as its value.
Once you've done that, you need to add this to the Custom CSS area in Vamtam/General or to a child theme:
.show-low-res { display: none }
@media (max-width: 767px) {
.show-low-res { display: block; }
.hide-low-res { display: none; }
}
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You can also hide the column's background image on mobile resolution, with an option "Hide the Background Image on Lower Resolution" in the column's settings panel:
You can also hide the left / right sidebar with the following code:
@media (max-width: 958px) {
aside.left {
display: none !important;
}
}
@media (max-width: 958px) {
aside.right {
display: none !important;
}
}