Used unit/include list

Hi,

a question / proposal for the "List used"-Tool. This tool is real cool, but I haven't find yet to get the used units / include files over the whole project / projectgroup.
Is there a Cn-Tool which provide this?
If not, I offer to implement this feature based on the current "List used"-Tool, but as a separate Tool with its own Menu-Entry.

Best regards
Michael

"List used" Function is used to list units used by CURRENT unit. not clearly for a whole project or group.