Jekyll-Admin: Add default "New metadata fields" to New Post Template

In Jekyll-Admin, going to Posts => New Post opens the template for creating new blog posts.

The template only has the Path, Title and Content fields.

I would like to add a few default “New metadata fields”, so blog writers don’t need to.

For example, I want to add “author” and “image” metadata fields to the default template.

Thank you in advance for any assistance with helping me learn how to do that.

Have you tried using front matter defaults?

# _config.yml
defaults:
  - scope:
      path: "" # an empty string here means all files of a type
      type: "posts"
    values:
      author: "" # empty so not nil