How to use nested headers option in Angular 4 with this plugin.

[raghu556]

I am passing below options, i want to create a nested header with colspan like https://jsfiddle.net/api/post/library/pure/

Kindly help.

this.options = { className: 'calender', allowInsertColumn: false, allowInsertRow: false, maxRows: 2, editor: false, rowHeaders: false, colHeaders: false, contextMenu: false, fixedColumnsLeft: 1, manualColumnFreeze: true, outsideClickDeselects: true, customBorders: true, columns: [], }