Trailing stoploss order for positional trades


I’m a positional trader, and I keep kicked out of trades due to no trailing SL. How can I place to trailing stop loss orders for positional trades ?

It is available for MIS orders, how can I do this for Normal orders? as I cannot convert MIS(with trailing SL) to NORMAL during the trading hours.

Trailing stoploss can not be placed for positional trades, Currently trailing stoploss order is available in Bracket order which is intraday basis and BO orders can not be converted into NRML.