Copy to clipboard
From OpenKM Documentation
Copy the document url (OpenKM browser path) to clipboard. Note in some browsers like Firefox you might configure browser to enable this option (security browser restrictions).
To enable JavaScript "Copy to clipboard" buttons on Firefox and Mozilla, enter the following line into browser address bar: about:config.
The list of preferences should open in browser window. Click right mouse button somewhere in active part of preference list window and choose New > Boolean option from context menu. Paste the following Preference name into the New boolean value window input box: signed.applets.codebase_principal_support.