Disable CkEditor to body field of a content type I enabled the CkEditor module, which is affecting all the text-area fields with summary and input format. How can I exclude the CkEditor for some fields?
The problem you experienced with configuring the field is that in core there is no option to select the allowed text formats. When this module is installed

https://www.drupal.org/project/allowed_formats

you can select the text format that is available for a specific field and then you can choose in the settings of the text format whether to use ckeditor or not.

There is work going on to put this in core: https://www.drupal.org/node/784672