Streak help - dynamic stop loss and target

How to get last 15 min candles ema value ?
How to scan stock for particular time period e.g ( from 9:30 to 12:30)
How to set stope loss with last candle high or low ?

You need to elaborate on the exact requirement. By default, when you write EMA(0), it calculate the ema of the latest candle.

You can write

You can write the following for Long
Close(0) lower than Low (-1)

Similarly, for Short
Close(0) higher than High (-1)