I don't have a resource that I could point to you toward that would be a panoptic source for what the keyboard does. However, I'll be happy to answer whatever questions you may have.
Just took delivery on this device. It looks largely self explanatory with the two-page manual included. However, given that a net search didn't turn up any additional resources, is there perhaps another reference item out there? I only ask because my advanced age and pointed head make me less adaptive than some, plus an index/glossary always provides solace.