If you have applied the monthly patch set 8.1.1.11.4 or later, you would expect to be able to manage activities in the Calendar views by dragging and dropping them onto the calendar applet. However, to achieve this state of bliss there are a view steps to take in the Siebel repository which is not modified by the patchset. As the attentive Open UI geek you are, you should know that drag and drop functionality is driven by the presence of two applet user properties, namely ClientPMUserProp = EnableDragAndDropInList EnableDragAndDropInList = TRUE Note that the ClientPMUserProp value could be a comma separated list, so we would have to add "EnableDragAndDropInList" at the end, but this is not the case for today's example. Basically, all we have to do is to add the above two user properties to the list applets in our calendar views (e.g. the LS Pharma HI Activity Calendar View ). If there are toggle applets registered for the base applet, we also must edit each toggle appl...