Synchronizing custom item templates between different DB files

[kinook]

There is not a diff feature in UR.

If you create a template item with custom attributes and a form, and copy the template or an item of that template to another DB, the custom attributes and form will also be created in the destination DB.

If you then modify the template and add more attributes, and copy the template or item of that template to the same DB as before, UR will add any additional attributes in the destination, but it won't modify the form or existing items with additional item attributes. But you could search for all items of that template, select all, and add the missing item attributes (and also add them to the form).