I didn’t find the Ring Fill Colors feature in my version of ChemDraw. How can I fix this problem?
Currently, the Ring Fill Colors feature is included with ChemDraw Professional level only. It is included with ChemDraw Professional for Mac, and ChemDraw Professional suite for Windows, as well as ChemOffice + Cloud suite for Windows.
Assuming you have ChemDraw Prime, check the ChemDraw level by using the following steps:
1. Open ChemDraw
2. Go to the Help menu and choose the “About ChemDraw"
3. This will open up another window containing information like level, version, etc.
If you update and reactivate the product using the ChemDraw Professional or ChemOffice+ Cloud activation code, you will find the "Ring Fill Colors" function under the ChemDraw Colors menu.
You can review the comparison chart features available in ChemDraw Prime 20.0 vs. ChemDraw Professional 20.0, and ChemOffice Professional 20.0 from the following link. You need to click the "ChemDraw & CHEMOFFICE+CLOUD SOLUTIONS" present under "Which ChemDraw solution is right for you?"