Django admin display specific model in form

Django admin display specific model in form

I'm creating a project to make collective translations, so I got original
text, with images. Basic idea is split text into chunks, chunks could be
different types: text and images (images can be uploaded, alt and
description could be edited...)
There is proof-of-concept
class Source(models.Model):
title = models.CharField(max_length=255, unique=True)
class SourceChunk(models.Model):
source = models.ForeignKey(Source)
class SourceTextChunk(models.Model):
chunk = models.ForeignKey(SourceChunk)
text = models.TextField()
class SourceImageChunk(models.Model):
chunk = models.ForeignKey(SourceChunk)
image = models.FileField()
alt = models.TextField()
title = models.TextField()
transcription = models.TextField()
And I want to create form, which will be displayed this way:
... some forms ...
text form
text form
text form
text form
image form
text form
text form
text form