Hi Is it possible to click on an event to edit it in situ like an excel cell and to add new events to empty days by clicking on empty cells
Inline editing of existing events is supported:
http://doc.daypilot.org/scheduler/inline-event-editing/
You can also create a new event and immediately start inline editing. See the following example (you will need version 7.9.5746 or higher (downloadable in the sandbox):
http://mvc.daypilot.org/sandbox/Scheduler/EventInlineEditing