Ah! I think you are using 3.16. Download the file that you want to use as sound alert > Convert it to .wav if in other format > Rename it as "Beep" > Place it in the same folder where NestTrader.exe is installed > Hope it works > If it does not don't blame me
The problem now is that one round trip of bracket order is about 7-8 events. Order placed, executed, 2 orders generated, squareoff executed, SL order cancelled... all this without counting any modifications.
That beep8 file in the link above was the shortest beep I could find (about 1/4 of a second). If anyone can find a shorter, milder beep, please post it here.