row_2 = row_1 + v_margin + 12; row_2 = row_1 + v_margin + 12; row_2 = row_1 + vertical_space/7; cv_in_1a = [left_col, row_3, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_3, 0]; c_tune = [second_col, fourth_row, 0]; triangle_out = [output_column, row_2, 0]; cv_2b_atten = [right_col, row_3, 0]; pwm_duty = [width_mm - h_margin - working_width/8, row_4, 0]; pwm_cv_lvl = [second_col, third_row, 0]; saw_out = [third_col, fourth_row, 0]; pwm_cv_lvl = [second_col, fourth_row.