When I double click on a structure pasted into a Word 6 or above document, the ChemDraw tools do not launch for editing the structure.
EGO was the protocol used that would allow you to edit structures within the Word 5.x document. Microsoft has dropped support of EGO in Word 6 and above. Word 6 and above support a graphic linking protocol called OLE. We would like to support OLE in a future version of ChemDraw for the Mac, but Microsoft does not appear to support Macintosh OLE development any longer.
Therefore, you will need to copy and paste between ChemDraw Mac and Word 6.x. We also suggest contacting Microsoft about dropping EGO which most other word processors still support.