How to create headings in OOD form.yml.erb

I want to create an OOD app for a bioinformatics workflow. The workflow has many parameters, and these parameters are used in different purposes. I am wondering whether there is a way to create different headings to separate parameters into categories on the OOD form.yml.erb. And I would like these headings with bigger font and in bold.

For example, I like the form to be like this:

Input options
.
.
.
Alignment options
.
.
.

I don’t quite follow what you’re looking for.

Are you looking for what’s described in this?

Or it seems like you just need 2 different form select options - 1 for input and 1 for alignment.