Dojo:
https://dojo.telerik.com/oGUnEtUR/2
Dojo has also been added as attachment

Setup:
Using a timeline view with grouped resources.
Select a timeframe (12 PM - 01 PM).

Use case:
We'd like to display when attendees are busy/available and let the user select a reasonable time for a new event where all or most attendees are available.
In the dojo-example, the user can select the timeframe 12:00 PM - 01:00 PM, but only for one Attendee (one row).
We'd like all slots in the timeframe 12:00 - 01:00 PM to be highlighted.

Event creation is irrelevant in our use case, we're only interested in the visual presentation of the selected timeframe and would like the timeframe to be highlighted for all Attendees.


Image example:
User selects timeframe 2PM - 3:30PM on resource row - Albert.

Current behaviour:

Desired behaviour:

select various no correlatives days, ex:

20 November + 1 december + 15 december,...

Thanks