...
The identifier number or string from the service given as Identifier type.
Organisation type
Select one term from the drop-down list.
Name
organisation
Enter the name of an independent corporate body, or, if recording a subordinate body, enter the name of the parent body.
...
Enter the name of a subordinate body. ISNI does not seem to allow for additional levels of hierarchy, but more information can be entered in the subdivision box if necessary. ISNI does not have the same kind of rules for entering names as in RDA.
Organisation type
Select one term from the drop-down list. This field is optional and will appear as a parenthetical qualifier to the name. On the template for new records it looks like a separate field, while on the template for editing existing records, it looks like a subfield of the name.
Name variant
See field information under Name.
...