you can achieve this by setting a @ref on the scheduler

add this to your scheduler components properties in markup

 @ref="@SchedulerRef"

add this to your code:

 public TelerikScheduler<AppointmentDto> SchedulerRef { get; set; }

then you can hit the Scheduler_RemoveFocus method to clear previous focus

SchedulerRef.Scheduler_RemoveFocus();

and you can set the target appointment based on it's index in the data source you are supplying to the scheduler

so, for instance if you want to highlight a newly added appointment you would use:

SchedulerRef.FocusedIndex = Appointments.Count();

hope this helps someone!