from django.contrib import admin
from .models import Webhook

class WebhookAdmin(admin.ModelAdmin):
    list_display = ('__unicode__', 'event', 'url')
    list_editable = ('event', 'url')
    list_filter = ('event',)

admin.site.register(Webhook, WebhookAdmin)

from django.contrib import admin
from .models import Webhook

admin.site.register(Webhook)

--- 
+++ 
@@ -1,4 +1,9 @@
 from django.contrib import admin
 from .models import Webhook
 
-admin.site.register(Webhook)
+class WebhookAdmin(admin.ModelAdmin):
+    list_display = ('__unicode__', 'event', 'url')
+    list_editable = ('event', 'url')
+    list_filter = ('event',)
+
+admin.site.register(Webhook, WebhookAdmin)
Add custom ModelAdmin for easier editing from list view