MP3 Sound from scenario

“Hello, I currently have an eedomus Box and I can add an MP3 sound to my IKEA Sonos speaker for each script, for example for motion detections from Fibaro modules or when the alarm is activated. Basically, for each scenario, I can attach an MP3 sound, and I would like to know if it’s possible to do the same with this box and if it’s as easy as eedomus?”

Do you mean with/on Homey itself?
Or did i understand the question wrong?

If so, you can use the FTP client with any FTP server app.