Expiration time

[alekstraj]

When NT receives orders from TradeStation via DLL interface it sets the expiration time to DAY. I read in the help files that orders with DAY in the TIF column are cancelled at 5 pm EST, which is not what i want . So essentially my question is how to change that to GTC (good-till-cancelled)?

[NinjaTrader_Ray]

Any of the order functions for TS are wrappers of the NTCommand() function. You could use the NTCommand() function directly which has a parameter for Time In Force" or you can ammend or create new order submission wrapper functions that includes this parameter. Pass in "GTC" for the time in force you want.