Linked identifiers are related sections that are kept synchronized. If you change the text within one of them, all others get updated accordingly.
If linked identifiers are contained in a single file, link information will not be persisted. So, if you close and reopen a file, all the links located in this file will be lost. However, link information of multi-file linked identifiers remains persisted after a file is closed and reopened. An example of a multi-file linked identifier is a class public member referenced in other files.
When linked identifiers are enabled, you can do the following.