The opinion editor is a powerful tool to make changes to usd files. There are still some holes in its functionality that would make it better...
Features
Support clearing opinions (not just changing them)
Add missing editors for attributes that are not simple strings/enums/bools. One example is a list op editor for attributes such as "references" which would allow you to change which references are being made on a spec.
Bugs
If you select more than one enum attribute at once it will create a dropdown that has the available values for a single enum. If you select it, it will set the value for all the attributes, but that may be an invalid value for the other enums.
The opinion editor is a powerful tool to make changes to usd files. There are still some holes in its functionality that would make it better...
Features
Bugs