Hi @massimo,
this is probably not relevant for you anymore but in case someone else stumbles upon this thread:
The error 69.6410 ERROR Variables for allowKeys aren’t supported for JS yet: occurred in my task when I tried to read the Allowed keys $ of my Keyboard component from a column in my conditions file. When I entered they keys directly into the Allowed keys $ it worked fine.
I am not sure why this error comes up but maybe JS needs to know in advance which keys will be used (rather than reading them flexibly from the conditions file.
Best,
Lennart