I totally agree. The YEM looks like something from 20 years ago. I wish Yamaha could hire some better application developers.
I don't think that developers are bad. These are some rules of Yamaha to NOT share all things to the users.
I don't think is so hard to let user, for example, to change name of a wave file (key sample name) or to activate wave cycle property of a voice
But Yamaha think that we, users, are thick-headed and we don't know what to do with those properties or other things that are present in uvf files but not shown in UI...
Maybe, they will wake up one day
Regards,
Vali