why i can't find [user attributes] in visitor profiels when i create an audience
1、 I have used Profile API [updateUserAttribute] to create an attribute like this
updateUserAttribute("user_type", 1);
2、i want to use this attribute(user_type) to create different audiences in AT, so i select the rule [Visitor Profile] when i created andience
here is the question: i can't find the an option of "user_type" or "user.user_type".

I don't know how to use the attribute[user_type] in AT.
Anyone could help me?