e700 and group melody

hi to everybody,
I would like customize my e700 with some ringtones that I have uploaded in "Sound" directory and not using the default melody, it's possible ?

If it's not possible I've another question: i'm trying to use easy studio to upload new melody, but when I connect my cell phone the button "download melody" and "download image" become unable and so I can only transfer file with "file manager" function and I cannot modify the default melody, it's correct ?

thanks to all for any suggestion,

paperinik.