Use a script event on the scene director. The script event would get the other scenes take item and tell it to go offline..
Something like this in a scene director script:
dim takeitem as xpBaseTakeItem
engine.sequencer.GetTakeItemByID(1001, takeitem)
takeitem.SetOffline
This script is assuming 1001 is the take id of the item you want to take off. Instead of takeitem.SetOffline you could use TakeItem.Execute to resume a pause, or put the scene online.
#XPression