REFERENCE LINK: https://www.afbouwbaas.nl/

i want to be able to change the outcome of which products for example

and perhaps the design, layout of the form

And another question: Can you explain to me how I would be able to add form options or products to the form? Here's a better example from a site: REFERENCE2: egaline.online. 

This is exactly how I want it. Can I add more steps to the form, and how would this work for me in the backend of your plugin?

i want it exactly like this
egaline.online

another question: how or is it possible to place the form wherever i want. is it with shortcodeS?

If u want all the things dynamic and customizable, it is also possible.
1. Like no of form steps,
2. conditions on which different sections will show or hide
3. Final result
4. Form design
5. Form shortcode to any page
6. Form to any website