Hi,
I really don’t like the split option in Nuendo. I think (not sure) that PT does it way better where spliting a audio file can be “logic” creating 2monos from a stereo but not actually creating 2 mono files on HD but just reading L or R from the original stereo (right?)
Anyway I use mono for my movie editing so how ever I don’t like how Nuendo does it (also you can’t split just one event you have to split all track) I have a dedicated stereo track called “splitter” that I use to split my files.
But using split view I sometime have 2 tracks selected when i do my split
shortcut and end up with an entire 1h20 track beeing splited for nothing 
And I’m not sure that when you undo that process the files created in this split are not deleted ?
Anyway, upgrading this all split combine system would be good, and if not at least add a “cancel” button on the split processing window to avoid waiting 30sec so a wrong split order is complete.