row_2 = row_1 + vertical_space/7; row_6 = row_5 + vertical_space/7; cv_in_1a = [left_col, row_3, 0]; manual_2 = [left_col, row_3, 0]; pwm_duty = [second_col, first_row, 0]; c_tune = [second_col, first_row, 0]; //Second row interface placement fm_in = [input_column + h_margin/2, row_1, 0]; square_out = [width_mm-h_margin, row_1, 0]; fm_pot .