Is there any way to add images on the events left and right sides ?
You can customize the event HTML using onBeforeEventRender event:
Scheduler http://doc.daypilot.org/scheduler/event-customization/
Calendar http://doc.daypilot.org/calendar/event-customization/
Monthly Calendar http://doc.daypilot.org/month/event-customization/
Gantt Chart (onBeforeTaskRender) http://doc.daypilot.org/gantt/task-customization/