sorry for the delay her is what I could came up with fallowing vV post
renoise.song().selected_note_column_index
renoise.song().tracks[].visible_note_columns
and “evaluate” message
seem to do what I want, I can not find a message just to ad a note_column
thanks to Osc Discussion (How Where What To Use Osc) for the help 
is there a better way ?
@taktik: we maybe should also add way to explicitly define the column, so one could do the column allocation in the OSC client
do you mean this ?
with Trigger/Note-On. arg#1: instrument (-1 for the currently selected one), arg#2: track (again -1 for the selected one). arg#3: column (again -1 for the selected one). arg#4: note value (0-119), arg#5: velocity (0-127)
need to add column arg for Trigger/Note-Off also and voila
or a different OSC message ?
thanks for your explanation satobox, taktik and vV