e.g. I want to make an for all purchases in "ETH" but NOT sales in "BTC".
Type
eth into the buy cur. box and
^(?!btc) in the sell cur. box + activate the
RegEx checkbox in the sell cur. box.
This will show all ETH purchases where the sell
is not BTC.
PS: Dominik is on vacation this week, but will be back on Monday to answer all the other questions

Best, Dario