Edit links from database

Hi,

I have a problem, and it is that I have to update the links of several downloads. I have a separate form linked to each download with MailChimp.

The problem with editing a download link is that it takes only the last 5 forms created. And I must do it with 20 downloads.

I had many tickets with you but the problem that all the forms will be shown in the select was never resolved, it has a limit of 5.

Therefore, I was thinking of changing these links from the database, check the phpmyadmin, but there is no table with this information, I want to know where these parameters are stored in the database to edit.

There are only package id statistics tables.

I await your comments,
Thank you