Hi, dan alive.

I definitely understand how convenient it can be in seeing the notes you entered in the vendor's profile to populate every time you create an expense transaction. 

While this option is unavailable in the system, you'll want to send feedback to our Product Design Team. We'd like to have this opportunity to improve your QuickBooks experience. Here's how: 

1. Log in to your QuickBooks Online account.
2. Click the Gear icon at the upper-right and click Feedback.
3. Enter the details on what feature you'll want to suggest.
4. Click Next.

For updates, you can visit our QuickBooks Blog and be posted with what's new on QuickBooks. 

I'll be here if there's anything else that you need help with. Take care and have a great day!