Thank you Marco.

the newest version, is wihout tcl error ! great !

line3 compiled succesfully - thanks for link.

but there is something weird. it has problems with loading external libs using [import] (it was also inthe older version, so it is not new bug...)

in the console appears:

...

 iir 500

... couldn't create

 stepper

... couldn't create

and so on on many objects from various libs .

but I see that you used [import]

now I am will be out of pd for a long time, but your project is very interesting - thank you for that.

fero