This is related to the request in Search across .nls files.
When reading a model, it can be very confusing if a variable or procedure is declared and seemingly not used anywhere. Sometimes this is because it is only used inside a widget. It would be great if both “Find” and “Show usage” could indicate that there are usages of a variable/procedure on the interface. “Find” doesn’t even currently tell you how many instances were found. Even just adding that and indicating how many are in the current code tab vs on the interface would be helpful. Even more helpful would be to indicate where all the other instances are in the code tab. Same with “Show usage”. This could all potentially be solved with this issue on GitHub.