@BKeyport Thanks a lot for pointing it out. I just realized that the third-party module list on the magicmirror.buider is not complete and the forum is an must go place for information and support.
I have added MMM-CalendarEXT3Agenda and it is working. Of course it is not perfect, but I have posted a question related on the MMM-CalendarExt3Agenda main topic.
Thank you folks very much!