Hi Jennifer,

I think you started the Idea (https://success.salesforce.com/ideaView?id=08730000000YHmBAAW) regarding Quote Line Item sorting six years ago!

Sad to say that Salesforce have yet to enhance the Quote Line Item sorting in Classic, and just plain decided to leave sorting out completely in lightning!?! The mind boggles!!

Knowing what a pain this is, we decided to do something about it. We have an App that allows custom Quote Line Item sorting in both classic and lightning, and have just released it as a free App on the AppExchange.

It can be found on the AppExchange at...

https://appexchange.salesforce.com/listingDetail?listingId=a0N3A00000Ecs6qUAB

Please give it a try. All that we really ask is that you leave a review. That really helps us.

Cheers,

Rhyd.