Hello again,
Brendan points out that this is "Normalized Collision Energy", so we just use the values Thermo suggests (27, as you have noted).
So for now, you're stuck doing what you're doing. We could change this to use the explicit CE value as the Normalized CE value if it's available, but I'm not sure that wouldn't cause confusion. They're different ideas, really.
Thanks for using the Skyline support board,
Brian