Possible to skip in 15 minute intervals

Occasionally I'll get near the end of a recorded show and switch to live TV or bring up the program guide and when I try to resume the recording, I'm back at the beginning. I'm sure this is "operator error." :D

Anyway, I see the recordings have 15 minute intervals marked. Is there a way to jump 15 minutes with one button click? My "skip to tick" button currently jumps 30 seconds.