Sébastien Gendre <seb@k-7.ch> writes:

> Sometimes, I need to split a package configuration into multiple
> sections of my Org-mode document. [...] By splitting my config, I
> can correctly document each option and organize it in a more
> comprehensible way.

If I understand your usecase correctly, you would find Org's Noweb useful (See "16.11 Noweb Reference Syntax" of the Org manual).
See the attached example file. Take note of the ':noweb yes' header argument, and the NAME of the referenced code block.