Calling all kindly coders: Help adding sound alert to signal crossover

Calling all kindly coders: would it be possible for you to add a sound/popup alert to signal a confirmed crossover (i.e. after the latest bar closes, not during the current one) for this indicator? Anyone who could help would be a real star! Thank you!

N.B. Under 'Inputs', the option 'ShowOnlyPairOnCharts' must be set to 'true' to cut the number of lines down to two.

Anyone? Don't like bumping my own thread, but I really need some help...