Just an advice for those who are operating the bot: if you want to reduce the time sample, while having the same (slow) ema/macd, just multiply all ema parameters by the factor you've divided the time sample with.
E.g.: macd 1h 12/26/9 is the same as macd 5m 144/312/108, same as macd 1m 720/1560/540
This should guarantee the same behaviour, plus you don't have to trade only @ multiples of the (old) timeframe. You'll have to mess around with options.html and MaxSamplesToKeep before, though.