It should be possible if it is encoded into the Z-Core tone itself. Unfortunately, it is not possible to make the changes on the RD-88 itself. However, it should be possible to make the changes with Zenology on the computer, and then import the tones into the RD-88.
I do not have an RD-88, and I can not test it. However, I have created a Z-Core tone on my keyboard that contains a crossfade which is mapped to CC#16. If you import the attached tone and set the FC to CC#16, then you can test if the crossfade works. If so, then Zenology might be an option.
I can not think of a way of doing it directly on the RD-88.
[attachment: crossfade.zip]
Attachments
crossfade.zip
(0 KB, 278 downloads)
· file not available Z-Core tone with crossfade mapped to CC#16