Indicates if column multi sort is allowed. If multi sort is allowed, user can sort by more then one column at a time (holding ctl or cmd key). This property can be defined during object creation: let grid = new w2grid({ name : 'grid', header : 'Grid Header', multiSort : false, columns: [ { field: 'recid', text: 'ID', size: '50px' }, { field: 'lname', text: 'Last Name', size: '30%' }, { field: 'fname', text: 'First Name', size: '30%' }, { field: 'email', text: 'Email', size: '40%' }, { field: 'sdate', text: 'Start Date', size: '120px' }, { field: 'sdate', text: 'End Date', size: '120px' } ] }); Or any time after the grid has been created: grid.multiSort = true; Please note, you need to enable column sort when you define .columns for the grid. See .columns property for more information.