I wantto decide “contacts attributes” for themselves!

 I don't like the fact that there is a standard attributes item called “Lead category”. Because of this, I cannot use the string “category” in custom data attributes.
In fact, I want to describe “toB” and “toC” information in a list format, but the default format is text.
This is the kind of difficulty in use.
I added the items for this myself, so it would be fine if the standard attributes items could be archived as well.