I18N Placeholders: where are the language tabs?

[Ed Sherry]

I made a model with a PlaceholderField, but I can't figure out how to translate it.

According to the docs:

Out of the box PlaceholderAdminMixin supports multiple languages and will display language tabs. If you extend your model admin class derived from PlaceholderAdminMixin and overwrite change_form_template have a look at admin/placeholders/placeholder/change_form.html to see how to display the language tabs.

I tried to follow the path to change_form.html but I think it may be out of date, I can't seem to find it.

Anyone know how to show language tabs (I'm assuming these would appear in ckeditor when it pops up)?