Divide form into sections / Add text sections

Hi there,

I need to create a form that has different sections:
-personal information
-case information
-other relevant information

At the start of these sections I need to add some text to explain what kind of information is needed from the user.
I tried using the ‘note’ input field to generate the text but the client would need to use html and the text can’t be displayed across the full width of the form.

Is there a way I could add a wysiwyg-editor to the backend maybe? Or maybe divide one form up into several forms without having to use several submits (the client only wants 1 submit-button)?

https://www.ads-software.com/plugins/wordpress-form-manager/