... Just adding onto the list of Events that _do not_ work at Drawing open: EnteringQuiescentState, DocumentActivated, and DocumentCreated.
More specifically, the code executes in these Events... The XML is updated programmatically, and the RefreshShortcutNode Command is called via SendStringToExecute()... But there is no change in Toolspace, Prospector tab, Working folder.
** Edit - Essentially, I'm having trouble determining when whatever background initialization RefreshShortcutNode needs to work, is done loading in each drawing (never mind, why is it, whatever it is, not loaded once per session!?).
Currently, the only working Event is DocumentBecameCurrent, but even then, I still have to open a given drawing, switch to a second drawing, and then back to the original drawing before the result of RefreshShortcutNode is displayed in Toolspace, Prospector tab.