It seems you are experiencing an issue with selecting multiple words manually in OneNote on your iPad Air. Unfortunately, the context provided does not contain specific information about troubleshooting selection issues in OneNote on iOS devices. However, you might want to check for any updates to the OneNote app, as updates can sometimes resolve functionality issues. Additionally, consider restarting your iPad or reinstalling the app if the problem persists.
For further assistance, you may want to reach out to Microsoft support directly, as they can provide more targeted help for your specific device and application version.
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