The CML plugin mainly works in background, providing reading and writing of Chemical Markup Language (CML) files. For further informaiton about CML, see the CML home page.
If you right click on a CML file in the BioResource Navigator, you can start a CMLValidateAction. This will tell you if the file complies with cml rules according to the XML Schema for CML 2.4.
The CML library is licensed with the Artistic License.
Copyright for the Jumbo CMLDOM (version 5.2) library and the CML Schema is with Peter Murray-Rust (Cambridge University).