Addition of three very handy editing keys to SL:
[Ctrl]+[Ins]: Copy
[Shift]+[Ins]: Paste
[Shift]+[Del]: Cut {to clipboard}
I mention these because most people are familiar with these:
[Ctrl]+[X]: Exit. Oh, no! That's Cut! Isn't it?
[Ctrl]+[C]: Copy. Cut? Abort! Exit! Something ...
[Ctrl]+[P]: Print! Paste? Who knows?
Years ago, it was recognized that all the [Ctrl]+[Letter] combinations were, by nature, confusing. I can, on short notice, come up with eight key combinations that all mean [Exit] or [Close], which include both [Ctrl]+[X] and [Ctrl]+[C]. [Ctrl]+[C] is also interchangeable with, get this, [Ctrl]+[Z] and [Ctrl]+[Break]. In fact, if memory serves, [Ctrl]+[Break] puts out the same output as [Ctrl]+[C]!
To say all these key combinations that overlap on the same key mapping is confusing is a bit of an understatement. But, in all my years of computer, I've never seen the keys I've suggested adding ever mean anything other than what they do.