Comment on Code your Technical Analysis strategy
Buy: EMA(Close,3)>EMA(Close,15) Buy exit: 0
Sell: EMA(Close,3)
The thing though is that you will not be able to go live on a daily candle as the candle will be complete only at the end of the day and not at 3.25pm, if I am understanding your strategy right. If you want the system to give you an indicator on its own, you will need to run the strategy on intraday chart. If you want to run this on a daily candle, you will have to do it after the market closing and place a trade the next day when market opens.