How do you perform entity extraction via the GUI

Okay team,

I am trying to extract a @system email entity and everything I have tried fails horribly. The best I have gotten is by setting the value, via the GUI, as {{event.nlu.entitities}} at which point it doesn’t save and email, but it will save “object object” instead. I have reviewed the information provided under botpress-flows-entity-extraction topic, but it was not particularly helpful.

I used the chart provided to steer my tests, and all of them failed. I really want to be able to figure out how to do this via the GUI and not hard code it, so that I can have non-technical staff create and update chatbots as needed without having to teach them JS.