Is it possible to create sub-sections within your field sections?

Question

Is there a way to create sections within your field sections?

- Field Section
    - Field

For example I would like the following template setup to be like this:

- Header
    - Header Title
    - Header Body
    - Header Image
- Introduction
    - Introduction Title
    - Introduction Body
    - Introduction Image
- Image gallery
    - Image 1
        - Image
        - Caption
        - Author
    - Image 2
        - Image
        - Caption
        - Author
    - Image 3
        - Image
        - Caption
        - Author
    - Image 4
        - Image
        - Caption
        - Author

But instead the implementation looks like the following

- Header
    - Header Title
    - Header Body
    - Header Image
- Introduction
    - Introduction Title
    - Introduction Body
    - Introduction Image
- Image gallery
    - Image 1 Image
    - Image 1 Caption
    - Image 1 Author
    - Image 2 Image
    - Image 2 Caption
    - Image 2 Author
    - Image 3 Image
    - Image 3 Caption
    - Image 3 Author
    - Image 4 Image
    - Image 4 Caption
    - Image 4 Author

Answer 1

No, it's not possible.

You should think about having separate template for Image Gallery Item with Image, Caption and Author fields

And then some multilist field maybe for selecting which images should be displayed in the gallery.

Or you may want to create your Image Gallery Item items as child items of the datasource of your component.