Is there a simple way to show a ManyToManyField as Checkboxes in Django Admin? Thanks in advance!
I think there is no simple way to do this. You can try to override ModelAdmin class but this is not a "simple" way.
But you can use filter_horizontal or filter_vertical to add almost similar functionality
http://docs.djangoproject.com/en/dev/ref/contrib/admin/#django.contrib.admin.ModelAdmin.filter_horizontal