Locking Slot's in Halion 5

Is it possible to lock the Slot’s in Halion 5 for Overwriting?

Not possible, I’m affraid. I have often thought that a lock function would be very handy, too. I have a history of accidently changing/deleting important stuff in Halion presets because I thought the window focus was on Cubase, while the focus was actually on Halion. The Undo function in Halion have saved me most of the times, though.