Blank Channels in Chart and Clearing Chart Parameters 3.0

Looking to know how to or Request the ability to add "Blank" channels to the Charts display. I know we can move them up or down which I use to breakup blocks or groups of channels but I can not seem to add any once the "default" ones are used up.

Also, when making additional histogram charts and you fubar a row or axis parameter and need to delete it you can't. You have to delete the whole graph and start over again. Can we get a away to "undo last" or select "none".

Highlight everything below where you want a blank spot, right click, hit move down. It will move everything down, leaving a blank spot above whatever you had highlighted

I second the complaint about not having a "clear" chart/graph axis parameters. Usually not a huge deal but a clear button would be nice IMO

good info on the blank channels. thanks.