Hello Hilaire,
I will have a look, I don���t remember why.
btw, I have to check because the #respondsTo: is not very sexy.
Cheers
Alain


As I wrote previously, the Settings browser let me complete almost
successfully what I need. See attached screenshot. I am only stuck with
widget model explicitly set to the SettingDeclaration.

Thanks

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iStoa - http://istoa.drgeo.eu

<Capture.png>