Currenty only supports adding WebMaps from groups would be nice to see the capability to add feature services. The same functionality is needed within the Explorer app.
Thanks for submitting this idea. Could you expand upon the workflow you have where it would be beneficial to add feature layers in the PowerPoint plugin? How are these feature layers being generated, and what removes the use of a web map from your workflows when adding content in PowerPoint?
If you can provide this additional context it will help us better understand the request.
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