I can share some information about changing document location in QuickBooks Desktop (QBDT) 2021 version, @Harry25. 

The ability to alter or update the location of attachments in QBDT 2021 is still unavailable. The attached documents are still kept in the same location as your company file. 

However, you may always go to your Doc Center and manually save a copy. You can use the instructions I provided above. Check out the following article for additional information about the QuickBooks Document Center and how to resolve any issues you may encounter: QuickBooks Document Center: FAQs and common issues.

We don't have an exact time frame on when updates on the document location change, price rules, and taxability will be available. That will be a good addition to the current features that we have, so I'll take note of it.

Refer to this article to see the latest features in QBDT 2021: What’s new in QuickBooks Desktop 2021. 

I also invite you to visit the Firm of the Future site. It contains resources and tips to help easily use QuickBooks.

I'm always here to assist you and answer any questions you may have regarding the Doc Center. Please let me know in the comments section below. Have a wonderful rest of your day!