The Repeat function in Zara Radio is designed so that it has multiple uses. For example, there is a repeat function for the playback mode, there is a repeat function for the number of times a file is repeated again an interval of time, etc.
However, there is also a comprehensive guide about this program that's listed as User Guide. It contains all the functions plus the features explained.
Download PDF guide: http://www.zarastudio.es/downloads/manual2_en.pdf