Crossfade presets with keycommand or macro

How do you quickly apply different crossfade presets with keycommands or macros?
I cannot find a way to recall the crossfade presets other than opening the editor and selecting them by hand.
I have written some macros which set the overlap of two events and then crossfade, but it would be so much easier to recall the crossfade presets.
This would also make it simpler if I want to change an existing crossfade.
Thank you for your input.