Let's create the default Django administration for the Idea model and its translations:

# myproject/apps/ideas/admin.py
from django import forms
from django.contrib import admin
from django.utils.translation import gettext_lazy as _

from myproject.apps.core.admin import LanguageChoicesForm

from .models import Idea, IdeaTranslations


class IdeaTranslationsForm(LanguageChoicesForm):
    class Meta:
        model = IdeaTranslations
        fields = "__all__"


class IdeaTranslationsInline(admin.StackedInline):
    form = IdeaTranslationsForm
    model = IdeaTranslations
    extra = 0


@admin.register(Idea)
class IdeaAdmin(admin.ModelAdmin):
    inlines = [IdeaTranslationsInline]

    fieldsets = [
        (_("Author and Category"), {"fields": ["author", "categories"]}),

        (_("Title and Content"), {"fields": ["title", "content", 
         "picture"]}),
        (_("Ratings"), {"fields": ["rating"]}),
    ]

If you access the administration form for the ideas, it will look like this: