Cubase 9.5 Pro with External Hardware using SysEX data

Almost certainly not. I suspect it’s a very niche field these days. The vast majority of DAW users don’t use a lot (if any) external units. This is the first time this sort of issue has come to my attention whilst perusing this forum over the last few years.

The Sysex dump will work just fine as JMCecil says but you will have to do the editing on the external unit.