Copyright notices are stored as supporting material elements. You can specify the default copyright for all elements in a particular plug-in by using the plug-in editor.
Note: The default copyright notice can only be changed on editable plug-ins.
Use the tree browser in the Library view panel to locate the plug-in
you want to work on.
Expand the plug-in node until you see the icon for the guidance element.
Double-click on the guidance icon. This will invoke the plug-in editor.
Edit the Detail Information section for this guidance element.
Close the window to save your changes.
Sometimes elements in your plug-in may require a different copyright than the default for the plug-in. The plug-in default can be overridden as follows:
Frequently a plug-in contains contributing elements with a different copyright than the base elements which receive the contribution. When there are multiple contributing elements, each with its own copyright notice, the individual copyrights are appended to each other in the generated page on the published site.
When you create a new plug-in you should also create a supporting materials guidance element with the appropriate copyright information. Reference this element from the plug-in's "copyright" field.
Use the tree browser in the Library view panel to locate the plug-in you want to work on.
and click OK.
Close the window to save your changes.