The multiselect.redraw() method refreshes the event highlighting for the current Scheduler multi-selection.
DayPilot.Scheduler.multiselect.redraw()This method has no parameters.
This method updates the scheduler event highlighting according to the list of selected events.
Call it after a batch of DayPilot.Scheduler.multiselect.add() and DayPilot.Scheduler.multiselect.remove() operations that postponed the UI refresh.
dps.multiselect.add(e1, true);
dps.multiselect.add(e2, true);
dps.multiselect.remove(e3, true);
dps.multiselect.redraw();DayPilot.Scheduler.multiselect.add()
DayPilot.Scheduler.multiselect.remove()
Event Selecting [doc.daypilot.org]