How to add a buddy Pok?mon to get more candy in Pok?mon Go

[iMore.com]

It's no fun to go alone. Take help in the form of your very own Pok?mon companion!

Full story from the iMore Blog...

 

[James Barrios]

If I already had a buddy can I change it?:huh:

 

[James Barrios]

I hope you'll answer me.