From a post https://forum.mendix.com/link/questions/89485
overflow-x:scroll;
probably together with a (max) width set in place eg.
width: 2000px;
I’ve used this CSS to adjust the forum listview:
.mx-list
{
width: 800px;
display: flex;
overflow-x: scroll;
}
.mx-list .mx-listview-item {
width: 200px;
}
Results below (would need additional styling to make it look alright, but should get you started):
Hope this helps