Creates a link in the code that supports editing tags (identifier characters and ":", "_", ".", or "-"). Links synchronize references to the same tag.
Letters, numbers, underscore, colon (":"), dot ("."), and minus ("-") are allowed inside the TagLink command.
To use this Text Command, specify the tag text as the first parameter. Subsequent calls to a Link with the same tag text will expand to the initialized value of the first, and will later change when any other Link is changed.