navigation between partially filled POs and Bills

Currently, if I have a partially filled PO, the only way I can determine how many items I am waiting on is to view the Bill I created for the partial items. So, I click on the Bills tab and go there. But, once in the Bill for that PO there is no tab for POs and/or no navigation button to take me back to the PO I was just looking at. Could this be added? Yes, I can click the browser back button, but for consistencies sake having either a PO tab on the Bill view, and/or having the PO # as a clickable link (like the Bill # is in the PO view) would be preferable.

This is part of a larger issue of tracking partially fulfilled orders that I think needs wider improvement in Zoho books and Zoho Inventory. When a partial quantity of items is received against a PO line item, it would be nice if the PO then showed a new column called "BACKORDERED" for that item (or items) that shows how many received and how many are backordered. This should carry into the Bill, as well as the Invoice and Packing Slip. It would be nice on the Invoice to have the choice to show it or not. It should also show on PO Reports.

I also think having an Ordered and Backordered column on the Inventory view page would be useful so you can see if there are POs (outstanding, or partially fulfilled) that are in place for a given inventory item.

Thanks,

-Tom