WP Forms with Repeater Field customization

I have a WP Form and I will add the WPForms Repeater Field plugin. The form will capture some personal data (including a secret field) and the user will have the option to ADD Family members (Name, Last Name, Secret Field) as well. At the same time I want a simple plugin that I can keep a bunch of serial keys. (just paste them in and save them) Now, When someone completes the form, I want a piece of code that gets 1 serial key from the other plugin and assign it to the form applicant secret field. If the applicant added 2 more family members, then each persons secret field should pick a unique serial key from the other plugin and assign it to every persons secret field. When, a serial key is pulled from the plugin, it has to be deleted from that list. The serial keys plugin should be very simple, just a text area that I can just keep adding serial keys. So I need: A script that runs every time the WP Form is submitted to pull a key from the custom plugin with the serial keys and assign it to the secret fields of my form. I hope this is clear. After the form is submitted, I want the confirmation email to include the serial keys for each person. I have a specific deadline for this project, which is within a week. Ideal Skills and Experience: - Proficiency in WordPress development - Experience customizing WP Forms with repeater fields - Ability to add new features to WP Forms - Strong attention to detail and ability to meet deadlines