Address context segment not visible

Summary:

Hello,

I am trying to create a flexfield for the address section in contact info and family and emergency contacts. Thus, I have created a context segment and a context:

However, when I try to enable the context segment via the design studio, I do not get a value returned:

Content (please ensure you mask any confidential information):

What am I missing in my configuration? Do I have the wrong dff code? Do I have to enable a profile option? Do I have to do anything on the manage address formats page?

Best regards and thank you all very much for helping me out!