I've also found that in 6.4 SP2 Classic UI, the "Drag components
here..." area is missing. This is due to the "null" value in the
"actions" array rendered by the WCMComponentFilter. Executing the same
code without the "null" value renders the drag'n'drop area.
CQ.WCM.edit({"path":"/content/helloworld/jcr:content/par/*","type":"wcm/foundation/components/parsys/newpar","csp":"base-page|page|basicpage/par|parsys/newpar","editConfig":{"actions":[null,"CQ.wcm.EditBase.INSERT"],"disableTargeting":true...