if i remember correctly
the hard deck is set every time at the altitude the heli is
when you enable the automatic rescue
you could set one channel to bank switching ( ch7 for example )
and assign it to 3 position switch
that will allow you to choose the 3 banks
then you assign another channel ( ch8 for example )
to 2 position switch and to the rescue function in spirit
so when you are in bank with normal rescue
and you switch the ch8 then the heli will rescue
when you are in the bank with automatic rescue
and you switch the ch8, the heli will memorise the altitude
and will rescue if you go below than that altitude
hope to be able to explain
