Our app calculates your averages when you submit an opening trade for a position you already have open. This can't be 100% accurate as it doesn't track trade size.
There is no extra trigger or syntax to average your trades. If you have an open trade, and submit the same trade again with an opening trigger, it will calculate your new average. For example, if you input
BTO AAPL @ 180and do not close it, when you put in another entry such as
BTO AAPL @ 170it will already know you have an existing open trade for this ticker and will auto calculate the new average for this trade to 175. This is also done with options as well so long as the ticker, expiration date, & strike price is the same.