How to get the WebApp to display a login message
Go to the $SPECROOT/webtomcat/webswing/ directory.
Edit the webswing.config file.
Find:
"args" : "-compress 9 ${customArgs}",
Add -loginTitle:
"args" : "-loginTitle My Custom Title Message -compress 9 ${customArgs}",
Save the file.
No restart is required.
Please note that WebApp by default will SSO into WebApp and not display this login box.
If you close the WebApp and relaunch it will be seen.
It will also be seen if you access the WebApp URL directory, skipping over OneClick tomcat.