Modifications required to be done for Etherpad server. Copy two files:
1. /lams_tool_doku/conf/etherpad-lite/src/node/utils/Settings.js to /${etherpad-lite-server-folder}/src/node/utils/Settings.js
2. /lams_tool_doku/conf/etherpad-lite/src/static/js/pad_userlist.js to /${etherpad-lite-server-folder}/src/static/js/pad_userlist.js