Thanks for the submission. We have placed the idea under community review to gather more feedback and votes. Tangibly, if this has enough votes it'll could be considered alongside other top-ranking ideas for inclusion in Sites 9 or in future UI work. For example, see a related idea in the request for a Schema name in the Column view.
The Data Extender GUI extension mechanism you're using is generally the same in SDL Web 8 and Web 8.5 as it was in Tridion 2011. Reach out to Support for any issues.
Note that the ability to get from a page on Staging to the back-end page is available in Experience Manager, which is implemented in DXA. And vice versa, in recent versions we also made the "Sites" more explicit with links to available Target Types as well as the "view on site" feature.
Some questions on this idea:
- Would your customer be looking for just the filename or the entire path? Or would the actual URL help?
- Is there a preference if this information is available in all lists and/or via search only?