Nice! I am glad there is a way. I had tried to drag the instrument itself from one instance to the other but it did not occur to me to try with the notes. I suppose a workaround could be to export to Famitracker, then use famitracker to export the instrument file.
On a side note, I had checked in the written documentation first and this trick does not seem to be included in the written manual.
Thanks again for the help.