how to change display scaling in Android 10

Please tell us some basic information before asking for help:
- Model Name: ZE620KL
- Firmware Version: latest Android 10
- Rooted or not:
- Frequency of Occurrence:
- APP Name & APP Version (If your issue relates to the app):
In addition to information above, please also provide as much details as you can, e.g., using scenario, what troubleshooting you've already done, screenshot, etc.
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It seems I can't find a way to change display scaling of each apps in the new Android 10. How do I change it?
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Comments
Display scaling is zen ui features... You won't see it in Android 10 beta as it's aosp..