Rename Dialog for a Package
Use this dialog to rename a package.
In addition to renaming the package itself, IntelliJ IDEA can also look for the usages of the package name. If found, the changes you are making to the package name can also be applied to these usages.
The usages are assigned to different categories which correspond to the options which you can turn on and off.
Note that regardless of the options selected, the search scope (that is, the places where the name occurrences are looked for) is always limited to the current entity (file, class, etc) and the entities that the current one depends on.
Rename <package> and its usages to
Specify a new name for the package.
Search in comments and strings
If this checkbox is selected, IntelliJ IDEA will look for occurrences of the package name within comments and string literals in your source code files.
Search for text occurrences
If this option is on, IntelliJ IDEA will look for occurrences of the package name in the files that don't contain source code. These may be the text files, properties files, HTML files, documentation files, etc.