Hi RC,
I assume you talk about Windows:
Very hard to achieve on Windows. Because even though it is a USB device, Renoise can only control it as a Midi device and this Midi device list is not automatically refreshed or updated by the Windows kernel for applications that are currently using the Midi kernel driver.
See also:
http://www.renoise.c…showtopic=28635
There is no hotplugging for Midi in Windows unless the host software has its own driver specially made for the device that is being hotplugged in.(that driver would then not be a midi driver as well)