Hello Alain,
You could use the SpecialSlots functionality of the ScheduleView to divide them. You could find more information about it in this help article:
http://www.telerik.com/help/wpf/radscheduleview-features-speacialslots.html and an example in our demos under
ScheduleView->Special and ReadOnly slots:
http://demos.telerik.com/wpf/
As for the sample project you could send it to use by opening a support ticket and attaching it there.
Regards,
Konstantina
Telerik
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