Very interesting topic, actually this will eliminate the worries that i had regarding trading long term the ASX stocks [Volatility of AUD/USD].
So for example
my account base currency is USD
I will use the currency pair as AUD.USD (since this is the one in IB)
this will give me two zones Hedge zone and No Hedge zone
Hedge Zone is when the AUD.USD breaks above the upper channel then I will buy AUD with the amount in USD equivalent to my account size (trading the strategy)
If the AUD.USD breaks the lower channel then i will close the forex trade since now it is in my favour.
regarding the forex trade I think since it is RegT account i can do it in the same account that i will be using for the trading strategy. but the question is since in forex the leverage is a bit high 40:1 should i use it or i need to have additional cash only for the hedging purpose.