Umbraco 15 links box

Questions
1

I am currently migrating an Umbraco site from version 13 to version 15. In version 13, we customized the “links” box to display only the URL relevant to the current environment.

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This customization was implemented using the SendingContentNotification approach described in the Umbraco 13 documentation here:

For Umbraco 15, I’m assuming the recommended approach is to modify the URL link box using a backoffice extension. Could anyone provide guidance or examples on how to override the displayed URLs in the “links” box for Umbraco 15?

2

Not sure yet how exactly, but I think you need this: