Hi Peter
By default, this option is not available with this template however you could try adding the following to the Custom CSS field of your template style settings...
#hornav .columns-2 + ul {
-moz-column-count: 2;
-moz-column-gap: 0;
-webkit-column-count: 2;
-webkit-column-gap: 0;
column-count: 2;
column-gap: 0;
width: 420px;
}
#hornav .columns-3 + ul {
-moz-column-count: 3;
-moz-column-gap: 0;
-webkit-column-count: 3;
-webkit-column-gap: 0;
column-count: 3;
column-gap: 0;
width: 630px;
}
#hornav .columns-4 + ul {
-moz-column-count: 4;
-moz-column-gap: 0;
-webkit-column-count: 4;
-webkit-column-gap: 0;
column-count: 4;
column-gap: 0;
width: 840px;
}
Then try enabling as detailed here..
https://joomla51.com/tutorials/template-extras/creating-multi-column-dropdown-menus
Ciaran
