Hello everybody :) I'm completely new to the Drools universe. I discovered Drools, or more specifically Drools Fusion, by searching for a powerful CEP engine. I've read the DF user guide and came up with some issues about DF features. It would be great, if anyone can give me some explanations and/or refer to different information sources. My questions: 1. Persistence of events: 1. About sliding windows: It's written that a window contains the last X events/the event occurred in the last X time units. Is it somehow possible to specify a time window to