Grateful if forum members could please help.

I observed a friend use a feature in a Yahama PSR740 keyboard and wish to know if that feature is in KN7000:

The friend connected a microphone to the PSR740 and when he he played and sang through the mic, the keyboard was able to harmonize his voice into more than one part - producing the effect of more than one person singing.

Please may I know if this feature is in KN7000, and if so, how do I set it up to achieve that effect. Is it also available in KN5000 cos I still use the KN5 also.

I'll also appreciate Technicsplayer's expert input on this please.

And thanks in advance to you all for your valued suggestions.

Kennykay