Jonathan A

Problem:
How to do selective automatic translation or translate everything but some parts
Solution:
For the moment, the "Translate everything" mode retrieves everything configured as "Translatable" (in your WPML settings) and attempts to translate it.

It's not possible to "conditionally select" which post-types to translate and/or ignore.

I guess this is a useful feature request that you could submit here :
https://wpml.org/suggest-a-new-feature-for-wpml/

Alternatively, you could use the "Choose What to translate" mode and manually select the content to be automatically translated this way: https://wpml.org/documentation/translating-your-contents/#translating-pages-posts-and-custom-post-types
Relevant Documentation:
https://wpml.org/documentation/translating-your-contents/#translating-pages-posts-and-custom-post-types