Good day, HughCounsell,
It would be great to have this feature added on the mobile app for QuickBooks Online. It'll be more convenient for home-based works.
You can check out the QuickBooks Blog to see feature updates and what's new in QBO: https://quickbooks.intuit.com/blog/.
Here's a comparison to see what mobile app features does your device has: Compare mobile app features.
I'll be around if you have other questions. Your feedback means a lot to us.
