Would this be easy? (coding)

I have these two indicators called heiken ashi smoothed and heiken ashi exit. Both of these have been vary helpful over the past few months. What would be even more helpful is if they had an alert function. I have a vary limited amount of knowledge in coding (html) and absolutely no experience in mq4. How hard would it be to learn enough mt4 language to be able to add a sound signal to these indicators. Are there free websites to learn mt4? Any advise would be greatly appreciated.