IPad Air (4th generation) Wi-Fi

You can download and install the OneDrive app on your iPad. Download from the App Store. See: https://apps.apple.com/us/app/microsoft-onedrive/id477537958

If you have a Microsoft 365 subscription directly from Microsoft, you can sign into the OneDrive app using it.

See: Take a screenshot on your iPad - Apple Support

Change line spacing: see the iOS section of the following from Microsoft Support: https://support.microsoft.com/en-us/office/change-the-spacing-in-a-word-document-on-a-mobile-device-d0237d6d-7bfa-4af8-abad-a0f47641f140

Center a line: see the On Your iPad - Format Paragraphs section of the following from Microsoft support: https://support.microsoft.com/en-us/office/format-your-word-document-fb9ef2d6-e2ad-4721-abc1-55f88864617f

Home Button - there is no Home button on a 4th generation iPad Air.

The iPad User Guide is a rich source of frequently overlooked information about your iPad and iPadOS. The Guide is available both online using a web browser (such as Safari), or as an Apple Books download:

iPad User Guide - Apple Support

https://books.apple.com/book/id1567104892

The Tips App, installed by default on all new models of iPad, provides a brief introduction - and leads you to the User Guide. In case you missed it, here is a link to the Tips App:

https://apps.apple.com/gb/app/tips/id1069509450

Apple also has a huge YouTube Channel - containing videos and feature guidance:

https://www.youtube.com/user/Apple

As you’ll learn from the User Guide, the iPad Air4 doesn’t have a physical Home Button. Instead, with iPadOS, you use an upward-swipe gesture from the bottom edge of the screen:

Learn advanced gestures to interact with iPad - Apple Support

Also from the User Guide, instead of “print screen”, you can use the screenshot feature - and this can be saved as either a JPEG or PDF. More information:

Take a screenshot on your iPad - Apple Support

Apps, including, Microsoft OneDrive, are downloaded from the App Store:

https://apps.apple.com/gb/app/microsoft-onedrive/id477537958

Help for Microsoft Word and other MS Apps can be found in the Microsoft Support website. Google is an excellent tool to find resources.

https://google.com

As an evident newcomer to iPad, review of the User Guide and other listed resources will help you to better understand your iPad and its capabilities. With benefit of this knowledge, you’ll be able to enjoy all the advanced functionality of iPadOS and a modern iPad.