This appear to be the start of something interesting. Even without any disability, an overview of the contents of a workbook should be of value. My immediate impressions were that a little more analysis would be useful, especially when no more than direct cell references to occupied ranges were returned. It should be possible to discriminate between Data input ranges and Formula ranges (especially dynamic arrays) Header rows and potential labels could be separately identified and maybe offered as potential defined names.
The editing functionality wasn't immediately discoverable, relying as it does on a right click that may or not produce a context menu. Perhaps the context popup menu should show whenever an unnamed object is selected.
The functionality seemed to work best when ranges are identified by defined names, and for objects where names are often available.