Paper or simulated trading

Hello, I need a equity line and performance parameters of actually executed trades at my broker (i.g. flatex). Is it possible to perform a paper/simulated trading account within amibroker?

Yes, sure if you have (easy) access to the trades data of your Flatex account in some way or another (-> data export option). Read about example here http://www.amibroker.com/kb/2014/09/30/gen-backtest-from-a-file/