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Thanks for asking.
In order to use your eHome/MCE receiver like an Apple IR Receiver, you'd have to
1) disable all Behaviours at Prefs > Behaviours (by unchecking them)
2) assign the respective Virtual Remote actions to the respective buttons at Prefs > Mapping > Global mapping (Note: Remote Buddy offers additional hold states over what the OS X Apple Remote subsystem is offering - for these just assign the non-hold versions to the hold states)
Best regards,
Felix Schwarz