How to set different ringtone for calls/whatsapp for the same contact (MiS)

[miuion22]

Hello,
I want to set a differernt ringtone for several of my contacts.
I want that the calls ringtone will be different from the whatsapp ringtone.
How can I do that?

Thanks

 

[miuion22]

Nevermind.
Whatsapp has a function exactly for this.