Custom Script Implementation in FunnelForms

I'm looking for an expert who can help me implement a custom script within the HTML option of my FunnelForms. The details such as the purpose of the script and user interactions it should handle will be discussed later. I am open to various possibilities including collecting user data, triggering special effects, or validating form inputs.

Ideal Skills and Experience:
- Proficiency in HTML and JavaScript
- Experience with FunnelForms
- Ability to create custom scripts
- Good communication skills for discussing project details
- Problem-solving skills to handle various user interactions

Please note that the script may need to interact with external services or APIs, though this is not certain at this stage.