What is JotForm?
JotForm is a free online form builder which helps you create online forms without writing a single line of code. No sign-up required.
At JotForm, we want to make sure that you’re getting the online form builder help that you need. Our friendly customer support team is available 24/7.
We believe that if one user has a question, there could be more users who may have the same question. This is why many of our support forum threads are public and available to be searched and viewed. If you’d like help immediately, feel free to search for a similar question, or submit your question or concern.
As far as I understand from your post, you want to add some materials which demonstrate steps to do something, I don't think we have a app which creates a instructions. However, you can add videos, PDFs or GIFs to your form. With that materials, you can easily enrich your form and add capability to show something on your form.
To add videos to your forms, there are various widgets available, so you can choose one of the desired one:
In addition, you can use our "Image" field to embed GIF files. Please, see the steps from the below:
Lastly, adding a "PDF Embedder" widget to your form will allow you to preview PDF files to your form. You can access the widget through the link from the below:
For further assistance, please do let us know.