All the way to machine home?
The codes and Settings that are involved in the retraction for canned cycles are:
G98 Initial Point Return so it comes back to the Z position immediately before the canned cycle.
G99 R Plane Return so it comes out to whatever your are value is.
Setting 22 Canned Cycle Delta Z controls G73 retraction but I have no idea if it affects other drilling or boring canned cycles.
Setting 52 G83 Retract Above R but I don't know if this affects G81.
An open mind is a virtue...so long as all the common sense has not leaked out.