Enable field inside Manage Display from a .yml file When I create a field field.field.node.custom.body.yml in my custom module with the following code:

langcode: en
status: true
dependencies:
  config:
    - field.storage.node.body
    - node.type.customblog
  module:
    - text
id: node.customblog.body
field_name: body
entity_type: node
bundle: customblog
label: Body
description: ''
required: false
translatable: true
default_value: {  }
default_value_callback: ''
settings:
  display_summary: true
field_type: text_with_summary


The Body field is created and added to the appropriate CT when installed, but is set as disabled in the manage display. This seems to be default behavior. I would like the field to be enabled as the module is installed through the use of .yml files, is this possible?
There is a single config entity per entity_type, bundle and view/form mode. If you fully control that, then you can provide those config entities, if you just add a single field to something existing, you need to use the API to add your fields configuration to it.

See core.entity_form_display.node.article.default.yml in standard.profile and various others for examples.