Press “6. Design Interval Mode”. 
<Fig. 5.6.1-12> will appear for setting. 
 Press 1 by using number buttons, and then press  . 
 Press “7. Mirror Convert”. 
<Fig. 5.6.1-13> will appear for setting. 
 Press 0 by using the number buttons, and then press  . 
(The default of 
, 
is normal repeat, so that it is unnecessary to handle them in this exercise. However, it was
described just for the purpose of showing an example.) 
[Fig. 5.6.1-12]
[Fig. 5.6.1-13]