Rad Scheduler  -

How to possible three cell collapse and display single cell in timeline control (like col span functionality)

and create appointment display run time 

Hello John, 

Thank you for writing.  

RadScheduler is not designed to provide col span functionality. However, you can change the time scale in order to control how many cells to be displayed: http://docs.telerik.com/devtools/winforms/scheduler/views/timeline-view

I hope this information helps. Should you have further questions I would be glad to help.

Regards,
Dess
Telerik by Progress