It is about the displayed values. I think amprange() is the answer but I don't understand very well how it works.
In short, I am still dealing with envelopes.
I wish to use the gentable widget to create envelope like @iainmccurdy has done in the gen08 example, but this example requires quite a little effort to understand also, this type of envelope is not midi compatible in that way that the durations are fixed.
I am dreaming of a widget which would allow to graphically design an enveloppe using the opcode_r family (linsegr, transegr,) , provided that the last segment would always be the release one.