title: Fullcalendar v4 - Set only specific parent resource to collapse
body: <p>I am using timeline view on Fullcalendar v4.  I have 3 parent resources and each comes with number of child resources.  Because only 1 out of 3 parent resource is encouraged to be used, I want to set other 2 parent resources to be collapsed on initial view.</p>
  
  <p>I have found this setting, which sets all the parent resources to collapse.  But it does not allow me to set each parent resource to be expanded or collapsed.
  <a href="https://fullcalendar.io/docs/resourcesInitiallyExpanded" rel="nofollow noreferrer">https://fullcalendar.io/docs/resourcesInitiallyExpanded</a></p>
  
  <p>Is there anyway I can reach my goal?</p>