Inventory Template Configuration

Hi community, I am working around my way with Grist, so far I have been working with the Inventory Template. I have two main issues.

1- How can I add titles went trying to print orders so anybody can see the reference.

2- How can I adjust the formula to pick items delivered from one order and leave the remained ones still pending. Currently the formula is all or nothing, but this is not true in many cases. With the current formula there is no record of which items are still pending after a partial deliverly.

Thanks is advance of any help/support of this issue.

Javier