Step 1: Go to Appearance > Menus from WordPress Backend
Step 2: Enable Mega Menu and Select Column Numbers (Note: Only first category working with this settings. Please do not try to activate for submenus.)
Step 3: Edit Columns and save menu
Step 4 : How to hide column titles?
Step 5 : How to add icons?
a-) Please add icon name to the icon area.
b-) You can find all icon names into the -> Unzip downloaded zip file > PointFinder_Full_Package > demo_content > pointfinder_icons.zip