When creating new columns within Affinity, you will have the option of setting up a column as either a list-specific field or global field. Global fields will exist amongst all the lists (of the same type), while list-specific fields will exist only on the list it was created on.
Note: Global fields can not be created/used on opportunity-type lists as opportunities can have multiple people and/or organizations associated with each opportunity.
When creating a column within a particular list (limited to organization lists and people lists), the option to set it as a Global Field will appear. They are indicated by the blue-colored text in the column title. Global columns are great because once created they may be leveraged on any similarly typed list you create.
Below is an example of a Global Field column created within an organization list:
If you view any organization's profile page, the field will appear:
Note: Given the unique nature of opportunities, the "Notes" field in opportunity lists are not global, but rather list-specific. Even if the "Notes" field is in blue-colored text, it is treated as a list-specific field.
A List-specific field will only appear on the list in which it is created, indicated by black-colored text. This is used so that data from one list does not affect other lists
Note: All columns created within opportunity lists will be a list-specific field.
Below is an example of a list-specific field created within an organization list:
If you view any organization's profile, you will not see this field appear on the General tab.
This view will change when you click on the appropriate list on the left-hand side. List-specific fields will only appear when viewing the list that it was created on.