I'm maybe too much an Excel nerd but when you tick the box "all" in Excel the first time it remove everything and you can select only what you want.

In Numista everywhere we have a drowp down list with tick box, by default it's set on all, that's ok, but if you click on "all" then it only remove the line "all" and nothing else, then you have to remove manually what you don’t want, that's just a bit anoying because it should remove everything.
That's not a big things but that's not user friendly :-)
