good ideas.
you can currently do what you want. you just cant do it all in one click or in one drag. i found i kept erasing a preset i liked when i'd work in the editor to alter an exising filter. so, i've started to make copies of my default as if it's an extra preset. so, if i end up altering my default, i simply double click on the copy to bring it up in the preview and then click on the original default and hit the 'update preset' to restore my old default back to its original self.
so, there's also no reason you cant change your default as well. make a coyp of it. then double click on the one you want to be your default and click back on the original default and update it with the new filter setting that you do want.
craig
If wishes were horses... there'd be a whole lot of horse crap to clean up!
Craig