Which softwares can update trailing stop orders dynamically on broker/exchange server

I am Using a trailing stop as one of exiting methods. The trailing stop is a dynamica one with some ATR calculation. If I try to automate the strategy, I should find a software that can dynamically update the (trailing) stop orders everybar as the time goes by .

It seems tradestation does not support this function, (the trailing stop orders are monitored locally and only sent when the stop price is triggered ) Is there any automation softwares that can realize this function ?

thanks for any help
 
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