Looking at the Magento 2 docs, you can override a base/core layout.xml file – http://devdocs.magento.com/guides/v2.0/frontend-dev-guide/layouts/layout-override.html
Is it possible, to overide within a module rather than theme?
Alternatively, is it possible to bundle a theme within a module and extend that (and multiple other themes from multiple other modules) from the main website theme?
Best Answer
It is the same as with with theme layout but you have copy layout xml file in your layout directory.