You can add columns to the Interactive Gantt as per your choice and edit the values in the cells itself; just like you could do in the task worksheet.
- You can select the columns of your choice on the Gantt. For this, you need to click on the 'Columns' option on the Interactive Gantt.
The individual cells on the Gantt allow you to modify the data of the task.
The columns like the Task Type or State of a task are non-editable fields from the Grid View. You will have to edit one task at a time to change this data.