Selecting tuner to record show

During the day I watch TV-1 and Record on Tuner-2. At night I want to watch TV-2 and record on Tuner-1, but I can not set future recordings so this happens. All recordings go on Tuner-2 except when there are two programs scheduled at the same time and date. When I set a LIVE program to record, I can set which tuner records the program. Why can't we set which tuner records when setting future recordings from the Guide? This feature would be very useful. I don't think it would be hard to write the code to do this since it's already completed for live recording.

I asked Dish, but received a response that didn't answer the question, like they didn't understand.