Save configuration when leaving configuration dialog and not when closing SE.
I am often leaving SE running for many days without closing it. Eventually, quiet often, it crashes from one reason or another. This is not a real problem because, I guess, it was never designed to run for two weeks straight. The problem is that all configuration modifications that I do during these two weeks get lost because I didn't close SE properly. So it would be nice if SE would save configuration immediately and not wait until it being shut down.