Add the "Service Item Worksheet" document as a standard report usage/report selection in the base application.
The Service Item Worksheet is a document that is very often customized, not simply in layout(s), but also in report object(s). Therefore, the standard report is often replaced with a custom report object. It is also a document that is used externally, i.e., send to and viewed by their customers.
Also, via report selections one could also configure to use multiple reports for the service item worksheet document.
It also seems odd that all other 'main' sales, purchase and service documents already have a report usage, except for this document.

See also: https://github.com/microsoft/ALAppExtensions/issues/2347 (This issue was closed and it was suggested to add it as an idea instead)