I had the same problem finding a user manual in German. Download the original user manual. Open Google Translate on your PC and open the Documents tab. Here you can drag and drop the PDF document to translate it into Spanish and then save it to your PC. Apart from a few inaccuracies and the translation of fixed names that appear in English on the display, such as (CONFIG) (PROCESSION) (FADER) (HOME) etc., it is quite usable.
Greetings from Germany to Spain
Thomas