from django.contrib import admin

from .models import Discussion, Group


admin.site.register(Discussion)
admin.site.register(Group)

@@ -71,63 +71,381 @@
 p%0A%0A%0A
-admin.site.register(Discussion)%0Aadmin.site.register(Group
+class GroupAdmin(admin.ModelAdmin):%0A    filter_horizontal = ('moderators', 'watchers', 'members_if_private')%0A%0A    class Meta:%0A        model = Group%0A%0A%0Aclass DiscussionAdmin(admin.ModelAdmin):%0A    filter_horizontal = ('subscribers', 'ignorers')%0A%0A    class Meta:%0A        model = Discussion%0A%0A%0Aadmin.site.register(Group, GroupAdmin)%0Aadmin.site.register(Discussion, DiscussionAdmin
 )%0A

Use filter_horizontal for many-to-many fields.