I have created a fairly complex antenna that has a parameterized wire radius (wire_r), however I would like to change the name of the variable to better reflect its purpose (e.g. wire_r_cu). Since "wire_r" is buried within multiple design hierarchies (unites, subtractions, etc.), is there a quick way to replace all instances of "wire_r" with "wire_r_cu"? Essentially, from the paradigm of text based documents, is there such thing as a "Replace All" instances for a given variable?

Barring the above, is there at least a "Find All" instances, that would report where the variable is being used?

Thanks for the time and consideration.