Modify dhtmlxGantt to work with multiple projects Laravel5.2

I need working with multiple projects in dhtmlxgantt in Laravel. add extra column as project_id in gantt_task table. can you give me hint?

Hello,

You can add new column to the grid area. Please, check the next article and demo:
docs.dhtmlx.com/gantt/desktop__s … lumns.html
docs.dhtmlx.com/gantt/snippet/77b57eb4

Thank you Polina. Hope to follow your guide. and contact more guide later.
Thank you very much for your nice support.