CADMOS is a graphical learning design (LD) authoring tool that helps a teacher design a unit of learning in two layers: (i) the conceptual layer, which seems like a concept map and contains the learning activities with their associated learning resources and (ii) the flow layer, which contains the orchestration of these activities. One of CADMOS' main innovative features is that it can bridge the gap between the design of a unit of learning and its enactment into Moodle. This paper presents how one can create a LD using CADMOS and deploy it into Moodle. Also, the paper shows the findings from a case study which was organized in order to evaluate the usability of the tool, its pedagogical flexibility and the usefulness of its innovative feature of deploying a LD into Moodle. CADMOS seems to be an easy-to-use tool, which offers guidance and flexibility during the design process. (Contains 2 tables and 6 figures.)