I have looked for an answer, and couldn't find a clear and relevant answer yet.
I want to add more attribute to the users not to display, but only store information about them. The information will be used for a background function. I know that usermeta is used to add more attributes, and I know how to access the already existing information, but I don't know how to add/create new attributes.
This piece of information can be a null string by default for every user and modified if the user enters information.
I'd appreciate any kind of help since I'm new at Wordpress. Thanks!