Eureka Moment: preopencontrol

[Sannyasin Brahmanathaswami]

Just discovered "preopencontrol"

wow! I wish I had discovered this years ago.

dictionary needs help.. there are complete "outs" as we refer to them in our editing world: missing words/phrases

can someone please fill in the missing parts? They are mission critical

----------
Sent to a group<javascript:void(0)> when you go to the card<javascript:void(0)> that contains it and to a [????????? ] when going from a card which it is not placed on to one where it is.
------
BR: OK , Obviously the missing word there is "group"

but not so obvious here:

--------
For groups with their [??????]  set to true, the preOpenControl message is sent immediately after the [?????]
is sent to the card<javascript:void(0)> being opened. For non-background groups, it is sent after the  [??entire phrase missing here??]]
-------