Yyyeesss! It works!
Thanks for the clue... Of course, it was a bad idea to give me the answer, because now I have ten other stupid questions!

1) It seems that, once I have loaded the .dll file within the plug-ins in Biab, it does not "stay there" (as all other plug-ins bravely do). I have to reload this .fll time everytime I use Biab again (??).

2) Once I have succeeded to set 10 measures of "groove" (the blue blocks) how do I send it to Biab? My obvious (lazy) solution of taking it and dumping it to Biab does not seem to work (yes I understand it would be a bit "too simple"!!)

Bernard (still having fun!)