When you create a new data item, it is initialized with a simple
template (in which ‘...’ indicates content that you should normally
fill in) as a reminder of the format expected. Creation of the data
item is confirmed, and you can then edit the item immediately.
You cannot create a data item with the same name as a Wiki page or
a Reference, as it would be ‘hidden’ by that page or reference.
Please see the data items documentation for more details on the
naming, content, and use of a data item.