Hello sir,
I hope you are doing great,
I am expert in web development with 5 years of experience. I have strong skills over WordPress customization and plugins development.
I have checked your requirements clearly. I can Marge the script with plugin and make the auto optin/opt-out section.
I can start work right as quick as you hire me.
If you have any queries than you can ask me without hesitation I will happy to assist you.
I will wait for your kind response sir. Thank you so much for give me your precious time.