I would love to have a NOT function on the protocol filter part.
When you need to know who is using what globally, it can be helpful to filter the flow except this list of host/protocol.
example:
I have some video server, and I know it's taking my top 50 bandwidth users, but I need to get rid of them, to be able to see the rest.
And that as an option for every protocol filter.
Like a question mark.