Hi there, mike0710.

Thanks for bumping up on this thread. 

I got your point and see how useful is the barcode scanner in helping you manage your business. 
 

For now, I cannot tell as to when our development team will be releasing an update for the barcode scanner feature in QuickBooks Online. You may consider checking our blog website to keep you up-to-date for the feature release.

Meanwhile, we can look for a third-party application to help use the barcode scanner and add products to a particular transaction within QuickBooks. 

If you have more something to ask, please let me know by adding a new post below. Stay safe.