SSH to server
cd /root/
mkdir download
cd download
wget https://download.configserver.com/cse.tgz
tar -xzf cse.tgz
cd cse/
sh install.sh
Login to WHM and scroll to the bottom of the left hand menu and you should see "ConfigServer Explorer". Use with care.
If you want to uninstall, simply:
rm -fv /usr/local/cpanel/whostmgr/docroot/cgi/addon_cse.cgi
rm -fv /usr/local/cpanel/whostmgr/docroot/cgi/cseversion.txt