Categorizing Friends

Please let us group or categorize friends. I'm not sure about everyone else but I have quite a few friends on discord and it's difficult for me to keep track of which ones are which. It would really help if we were able to rename the groups/category names 
Ex: 

[Untitled Group] 

Person 1
Person 2
Person 3 

And then you could change the name of the group and move your friends out or into different groups