How to use the Fields Events it works ?

I'm starting to use Chronoforms v6 and I'm having a lot of trouble with your manual and FAQs.
I try to hide text fields from a Radios group and I'm following the FAQ "How to use the Fields Events" however without success !!!
Does anyone really know how to hide / show a second field from the Event handling of a Radios group?
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Detalhes

Hi Detalhes,
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Please post a link to the form so we can take a quick look.
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Bob

Please see if this video helps?
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extrom

Each new element in the element identifier field needs to be on a new line.

healybatman, can you please create an example?

field1
field2

Thanks, small bugs big problems see the video with the procedures ...
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https://youtu.be/RDqNkiRsf20

Type out what the problem is and the steps used to reproduce it instead of posting a super long video