Ok I'll try to work around that by giving them the lowest rate to find them later on the computer and delete them from here. I think it's a useful feature tho, and to avoid this risk an easy solution is to add an option to choose between delete only on the device or also on computer when the confirmation pop-up is triggered.

No, and unlikely it will be added as it is very risky and easily could result in loss of files when not intended.

Hello,

I'm starting to get used to MM and I manage to sync content between MMA and MMW (4.1.20). But if I delete some files on my phone they will get downloaded from my computer on the next phone sync ! I've seen the option to delete files on the phone when removed from the computer but not the other way around.. is it possible?