I think this is what I used within a script event on the scene director of second scene. First scene already on air, read the second scene and TakeID 1235 plays on same channel, but a higher layer.
script:
Dim MySequencer as xpSequencer = nothing
MySequencer = Engine.Sequencer
Dim MyTakeItem as xpTakeItem = nothing
MySequencer.GetTakeItemByID(1235, MyTakeItem)
MyTakeItem.Execute()
#XPression