This column it time per day and I want to change to dates per month
if in January this column should be :
1 Jan 2017
2 Jan 2017
3 Jan 2017
31 Jan 2017
Such a view isn't supported at the moment. I recommend using the Scheduler (https://doc.daypilot.org/scheduler/).
The Scheduler can display days on the X axis and a hierarchy of resources on the Y axis. The switched axes of the Scheduler proved to be more flexible.