For the benefit of anyone else who needs this:
$('.webix_cell').on('hover', function(e) {
$('.webix_cell').removeClass('cell_hover');
var rowid = $(this).index();
var cols = $(this).parent().siblings();
$(cols).each(function() {
var cell = $(this).children('div').eq(rowid);
$(cell).addClass('cell_hover');
});
$(this).addClass('cell_hover');
})
Adds a background on all cells in row.
This ability in jQuery also introduces opportunity to read and write content of Row in the same way that other Datatables operate.