Hello. I have several related lists on my opportunity page. One of them is for accounts that we call "Contractors". My users want to click "New" and select all the contractors they want to add to the related list on one screen, without having to click "New" every time. What's the best way to do this? Thank you.

Hello. I have several related lists on my opportunity page. One of them is for accounts that we call "Contractors". My users want to click "New" and select all the contractors they want to add to the related list on one screen, without having to click "New" every time. What's the best way to do this? Thank you.