>>Here's how to do it simple. Delete whatever you don't need from command window. Don't touch it after that. Just quit. Next time you launch Fox, command window is as you left it.
>
>You can also right-click on the command window and choose Clear from the menu that pops up.

That's true and well known - but you lose everything. I've got a habit of searching (ctrl+f, type the string, alt+b for backwards) through the command window to find a long command that I don't want to type. Wading through various unneeded or repeated commands is sometimes tiresome... so I was nicely surprised when I discovered this. Selective deletion is exactly what I needed.