Here is a guide to the Essential Info settings (Product Feature) in the PIM module.
Anything under Identity in Basic Info in the Details window can be customized using Essential Info Settings.
Product Feature
In PIM, go to Settings > Essential Info > Product Feature. Here, you can add fields and groups to your product features. Every field option exists in CR but if you want to see the most important ones grouped all together, you can.
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You can also adjust the layout and put things in the order in which you want them.
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