old_contents: 
  PLUGINS = (
      'actions',
      'filters',
      'bookmark',
      'export',
      'layout',
      'refresh',
      'details',
      'editable',
      'relate',
      'chart',
      'ajax',
      'relfield',
      'inline',
      'topnav',
      'portal',
      'quickform',
      'wizard',
      'images',
      'auth',
      'multiselect',
      'themes',
      'aggregation',
      # 'mobile',
      'passwords',
      'sitemenu',
      'language',
      'quickfilter',
      'sortablelist',
      'importexport'
  )
  
  
  def register_builtin_plugins(site):
      from importlib import import_module
      from django.conf import settings
  
      exclude_plugins = getattr(settings, 'XADMIN_EXCLUDE_PLUGINS', [])
  
      [import_module('xadmin.plugins.%s' % plugin) for plugin in PLUGINS if plugin not in exclude_plugins]
  
new_contents: 
  PLUGINS = (
      'actions',
      'filters',
      'bookmark',
      'export',
      'layout',
      'refresh',
      'details',
      'editable',
      'relate',
      'chart',
      'ajax',
      'relfield',
      'inline',
      'topnav',
      'portal',
      'quickform',
      'wizard',
      'images',
      'auth',
      'multiselect',
      'themes',
      'aggregation',
      # 'mobile',
      'passwords',
      'sitemenu',
      'language',
      'quickfilter',
      'sortablelist',
      'importexport'
  )
  
  
  def register_builtin_plugins(site):
      from importlib import import_module
      from django.conf import settings
  
      plugins = PLUGINS + tuple(getattr(settings, 'XADMIN_INCLUDE_PLUGINS', ()))
      exclude_plugins = getattr(settings, 'XADMIN_EXCLUDE_PLUGINS', [])
  
      [import_module('xadmin.plugins.%s' % plugin) for plugin in plugins if plugin not in exclude_plugins]
  
subject: Add settings 'XADMIN_INCLUDE_PLUGINS'.