So I want to create a batch in a purchase invoice without using the quick entry menu. I created a custom field for the expiry date. But when I try using the batch_no field for input it seems that it clears the entered text if it does not exist. How do I make it keep the text so I can use it with my client script?I have considered using a new custom field entirely for the batch number but I cannot figure out how to make it load batches and show auto complete