Hello Sebastian,
Here's a modified dojo example, which shows how to use the resources when selecting a slot: https://dojo.telerik.com/IPAfaXaz/3
With the room resource value being passed to the select method, the first slot within each room row will be selected. If you pass the attendee value as well (commented in the linked dojo), the behavior will be the default one - every slot would be selectable.
Regards,
Ivan Danchev
Progress Telerik
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