Bala,
Thanks for the kind words.
This is possible but not in a really good way. There is a file called template.xml which is loaded by the builder for new forms. You can see the latest version here:
https://github.com/orbeon/orbeon-forms/blob/master/src/resources/forms/orbeon/builder/form/template.xmlYou could override it under:
WEB-INF/resources/forms/orbeon/builder/form/template.xml
But his is a bit dangerous as, if an Orbeon Forms update changes the template, your custom template will still override it. Still, that's the best we have at this point. It would be ideal to be able to have global settings that apply to all forms.
Regards,
-Erik