How to suggest a selection at dropdown menu on the admin site

[bauergeorg]

Hi folks,

I am try to suggest my favorite permission at admin site when adding a permission (dop down menu). How can I do that?

admin.py

class DeploymentUserObjectPermissionAdmin(GuardedModelAdmin):
    list_display = ('permission', 'user', 'content_object')
    search_fields = ('permission', 'user', 'content_object')
    ordering = ('-permission',

models.py

class DeploymentUserObjectPermission(UserObjectPermissionBase):
    content_object = models.ForeignKey(Deployment, on_delete=models.CASCADE)

[bauergeorg]

And another additional question: How could I filter the permission selection?

[bauergeorg]

added to stackoverflow