That could be difficult to research – at least for us over here; we don’t comply to the US rules in Europe.
I think you will recognize that these are settings in the TWS order ticket. I mean, it should be settable by order. But there could also be a default in TWS, or possibly your IBKR account (the browser based data). I can imagine if you set that right (like Do Not apply FiFo), it may inherit to the order PRT provides.
In the end it is about your own protection, so to speak. You would not like to get charged tax twice and such.
My suggestion is to call IBKR and ask them how to put those orders via TWS (assumed you would not manage via TWS as well). With their answer, or the knowledge you already have you could attempt to call PRT over here (it is my estimate you have a +3176 … number for that).
Last thing : if all is right – and you can manage to put the order through in TWS, you will see the order plus its labels (Stops, Targets, all) in PRT just the same. From there you could learn how to put the orders in PRT ?
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