First of all thanks for your response. I gone through link and It is look like a classic UI or wcm part. But i am talking about coral UI. We will add / change the metadata nodes under metadata schema editor page ryt that one.

HiI want to enable / disable the fields on metadata editor page. For example i should have 1 dropdown and 3 text boxes. If i select yes value from the first drop down then i have to hide or disable the 3 text boxes. If i select no then i should enable those again. Please help me to do this.

Hi,If we have two config files under apps structure,For example  /apps/folder/config/org.apache.sling.engine.impl.auth.SlingAuthenticator  also  inside /apps/system/config/org.apache.sling.engine.impl.auth.SlingAuthenticator then CQ is always looking the config file under system. Why can you clarify...