Hi thank you so much now multichannel is working.! one more question i just changed this velocity scaling line: __ slider7:100<0,1000,1>Velocity Scaling(%) __ to: slider7:100<0,200,1>Velocity Scaling(%) for more ( - ) room for the slider is this is will broke anything? Full recompile said ok but i couldn't resist to ask because i know nothing about JS coding :) Best wishes and thank you again Yıldırım