Documentation suggests using withForm if you want to be able to "reuse whole subsections of your form" - is this wrong?

[rsslldnphy]

The form composition docs page includes an "API Usage Guidance" tree which suggests that you should use withForm if you need to "reuse whole subsections of your form".

I may have misunderstood, but from what I've read it seems that withForm is not intended to be / capable of being used in this way, specifically to make reusable subsections. As the formOptions have to be identical for the parent and child forms, components created with withForm are not reusable - they can only be used in the specific parent form with the matching formOptions. Is this correct?

So withForm allows you to break a big form down into smaller components that can be composed together, but those components cannot be reused across multiple forms.

If this is correct then maybe the tree diagram should be updated with different wording? If this isn't correct (which would be great as I really need this!) then an example of how to do it in the docs would be really helpful.