Yamaha Genos digital workstation keyboard
Hello, no you can not, however, there is a way around it. Once you've created your custom kit from samples, save and import your kits from YEM as an expansion pack. Then create or edit a user style and use the Drum Setup feature to map the drums how you want, combining internal and expansion samples as you see fit, then save the style. The downside is that you will have to re-enter editing mode for that style for the "custom drumkit" to be played. I remember the PSR9000 having the ability to combine custom samples and internal voices - for normal voices at least. Hopefully Yamaha will fix this with an update for YEM!