Custom Module Lightbox with a form

Hello Guys,
I created a custom module for a popup. But i need create a custom module where the user select a form for the page. (similar to module form) and i dont have ideia for how I start.
Actually my custom module have rich text and text, the text for button and the rich text for text or images, and this appears only in a lightbox.
How i make this?

You can use HUBL to add a form module to your custom module. See docs here Accounts Dashboard | HubSpot

{% form "form" %}

Hi Guys,

This has been built and published onto the HubSpot marketplace.

https://marketplace.hubspot.com/products/synx/synx_lightbox-form-custom-module-pack

Hopefully, that will help you with your problem you have.

Thanks