Add another item - doesn't work properly in Chrome. You can add one item and then "add" link drops below "Add another item - doesn't work properly in Chrome" and is unclickable.
Is there any way to create a list of lines and select them/ insert them? Or ideas/ pointers on how to integrate this/ hack the invoice page to work with Custom Content types e.g. Reed Write and I can create my own item lines/ prices/ descriptions?