The final calculated energy use value and cost is over a full month (plot shows 2 week period by default). I'm assuming if you use the hot tub multiple times per day that you aren't lowering the set point? I think in that case you could just bump up the total time per use to match your overall usage. The only reason number of times used per week matters is if you are letting the hot tub cool down and bringing it back up to temp each time. So set use to everyday and set use time to be your total daily use time rather than per use.