Current user creating Any Type of Data for current page user

How do I create or make changes to a data type aside the USER DATA TYPE for a current page user by a current user ?
I want to know if this is possible, because it seems one can only make this changes only to user data type and not any other data type.

WHAT I WANT TO DO
I want to Get information imputed from a current user on a pop up, click on a safe button to safe those for the current page user and not the current user.

USING THE MAKE CHANGES TO USER WORKFLOWS;

  1. On things to change, I chose current page user,
  2. When I click on Change another field, the field I intend to change under the health Data Type, did not show, only the fields under the USER DATA TYPE shows up.
    I want to be able to see the field under OTHER USER DATA I HAVE CHOSEN.
    How do I do this, thanks for your help.