Related Products - serch options

Hi !

I think the addon Related Products is very useful, but is posible to put at last page (image attached) whent must to select the related product from the list, the option to search product id# (ID#) ?
Is very hard to serch on huge list the product i want. I want to have the option to search the product what i want . The best option is to have serch form the id# of the product i want.

Sory for my bad english, i hope the image to explain what i want.

Nobody know how to add the option to enter the Product ID to be Pre-Added: for related products like for the specials products ?

Please i have 6000,00 of products to make the modification and is very hard..

Another way to doo that is to doo that command from Install Sql Patches option to add releted product but i dont dont know how!

Thank you very much!