Order Form: We would like to have a search feature at least in the backend to be able to search for a product

2- For the same reason of adding so many products to the form, we would like to have a search feature at least in the backend to be able to search for a product in case we want to edit that particular product.

Unfortunately, we do not have such option available. 

I would like to suggest using a search keyboard shortcut in browser (Ctrl + F on Windows, and Command + F on Mac) to perform the search.