The author spent less than an hour using the CADMOS tool to implement a new design based on an existing one. They were able to produce a small part of the design through the conceptual map and activity flow features. However, they needed support from the tool creator to advance further. The tool would benefit from a contextual help system to guide users. There are also some inconsistencies in how concepts like "resource" are defined. The tool should clearly present the expected outputs of a visual design and exportable IMS-LD package to teachers and researchers. A pool of designs created both with and without the tool would be useful to study its evolution.