Utilize "custom attributes" defined in Global Configuration (GC).

Hi,
Using version 7.0.3.
Requirements Management (RM)
Quality Management (QM)
Global Control Management (GC)
In RM and ETM, I would like to use the custom-defined attributes from GC. I have created my attributes in GC, but unfortunately, they are not appearing in RM. I have created a global stream and included RM and ETM. In RM, I have selected the GC stream. What am I missing?
"Configuration Management" is enabled.