Add or not to add user to group during Klipper installation

[NewGradRN]

I am installing clipper on my completed build but it pauses asking "add user xxxx to group now y/n." It does says might cause problem if I choose "no". Since I am not familiar with Klipper and what group it is talking about, I wanted to ask if it is necessary to choose yes or may be someone has succesfully chose "no" without any problem.. Thanks

[claudermilk]

It's a security group. I think the default is yes. I don't specifically recall that question, but I'm sure I went with the likely default answer of yes. 

[NewGradRN]

I went ahead and enter yes... seems like the only option..