DICOM Operation

I'm trying to add an Operation to store DICOM files but each time I add a Operation using the class EnsLib.DICOM.Operation.TCP it reverts into Services and I cannot work out why this is happening. I've tried following the guide online (link at the bottom) but the Operation still reverts to a Service.

Any pointers would be appreciated,

Thank you.

https://docs.intersystems.com/latest/csp/docbook/DocBook.UI.Page.cls?KEY...