How to enable up/down arrow keys in jqgrid inline edit

Question

How to implement excel like order detail edit grid.

This grid should be like excel:

1. preferably up/down arrow keys move to previous / next row and start cel

Answer 1

I have spent an entire day researching jqGrid for use in our software, and while the tool provides a lot of potential, what you're asking to accomplish seems to only be possible through intense customization. I hope someone responds and proves me wrong, but I think you and I are left to extend it ourselves to add this functionality.

Shame really, it would be incredibly valuable if it had this functionality out-of-the-box.