Failure effect names are initially entered using the grid on the Failure Effects panel (for object effects) or Design Failure Effects panel (for design effects). Once a failure effect has been defined, its name can be edited using Grid View. Although object effect names do not have to be unique between different objects, all failure effects associated with a single object should be uniquely named (so that they can be properly selected as design effect causes). Design effects should also have unique names. Changes to failure effect names will not impact the definitions of other effects within the design.
How To Name or Rename Object Effects (using Panels)