I've just bought a Garmin 30 after having a 210 for several years. There are two things I can't work out how to do (maybe not possible?). Can I set lap distance to be 0.25 miles (for track training). Also, is there an easy way to reset, again for track training, for instance for 800 reps. The 210 had a reset button which you could hold down easily whilst jogging between reps.