A script file may contain any number of file references. A file reference is used to specify which other files are necessary for the use of the current file.
Usually references are set up to other script files. By creating a file reference to another script file, the referenced script file is automatically opened by the SeqZap environment when the current file is opened.
The script files that the references are set up for will automatically become visible for the current file, which means that you from the current file can make use of the file elements that are in the referenced file. This does not work the other way around; the referenced file is not able to view the elements from the file that references it.