You can locate a 3 ma ea on this site, download it and look at the code and then ask someone to modify it according to your specs.
Or, perhaps you can modify the code.
you can search on google or forex factory for this type of free EA, search name: Universal ma cross EA, hope that can be useful for you.
I don't know if it is exactly what you need but take a look to this "code base" source. Is free and you can modify it as you prefer:
Also I found this one: https://www.mql5.com/en/code/250
Inside topic I don't see the EA request for a specific platform. I do read that Arrold is a programmer but without MQL experience. So just with this free code maybe he is able to make little changes to satisfy his request.
But Arrold isn't answering. Disappear