When taking the widget from the library the first time, it will have a set of basic details filled in.




Change the details to be the default's that you wish.


(changing to a https site  called, example.com in this example.)



Now Add it Back to your own library so that in the future it will always start in this way.



Create a new Library Folder for you client,  (Exmple.Com) using the new folder icon bottom right.





Now Select your widget and click the add item icon (Making sure your folder is still highlighted also)



This will create an 'Untitled' entry in the list.


You can now double click on it, and give it your own name.



This Library Item can now be used as the Template with all the correct details being set each time.