# MSM5232 instrument editor the instrument editor for MSM5232 consists of these macros: - **Volume**: volume sequence. - only has effect when the envelope mode of a group is set to External. - **Arpeggio**: pitch sequence. - **Group Ctrl**: group control sequence: - **sustain**: enable sustain mode. - **2'**: enable 2' overtone. - **4'**: enable 4' overtone. - **8'**: enable 8' overtone. - **16'**: enable 16' overtone. - **Group Attack**: set attack rate of group. - **Group Decay**: set decay rate of group. - **Noise**: toggle noise mode.