Actually, this is possible.

Send this message to a number box:

[param f f f s f s s(

where f is float and s is symbol according to the following syntax:

[param <width> <lower-limit> <upper-limit> <label> <position> <receive-label> <send-label>l(

This works with symbol atoms too.

that’s kind of what i did here. even with state saving…

cheers