In Support Files, the table describes all support files and indicates whether they are singular files or library files. Within a Project, you can have only one occurrence of a singular file type, but you can have multiple occurrences of a library file type.

If you attempt to create a second occurrence of a singular support file, a confirmation window opens. This window indicates that if you click Yes to continue, the existing version of the file will be automatically backed up before the new one is created. If you click No, the file creation process is canceled.