Save button on all steps

Sorry, this feature request would overly complicate the already sensitive form validation system. There is a workaround, however. Use the hook system to add your own save button that sets the form as complete.

function hook_entity_form_steps_complete_form_alter(array &$form, FormStateInterface $form_state, FieldableEntityInterface $entity, array $state) {
  $form['actions']['save_immediately'] = [
    '#type' => 'submit',
    '#name' => 'save_immediately',
    '#value' => t('Save'),
  ];
}

function hook_entity_form_steps_state_alter(array &$state, FormStateInterface $form_state, FieldableEntityInterface $entity) {
  if ($form_state->getTriggeringElement()['#name'] === 'save_immediately') {
    // Set form as complete to trigger the entity save operation.
     $state['complete'] = TRUE;
  }
}

See https://git.drupalcode.org/project/entity_form_steps/-/blob/1.x/entity_f....

Hi @robphillips , thanks for your answer and time, i'll work around your suggestion.