> ## Documentation Index
> Fetch the complete documentation index at: https://docs.lunarphp.com/llms.txt
> Use this file to discover all available pages before exploring further.

# Extending the Admin Panel

> An overview of how to extend Lunar's admin panel pages and resources.

The Lunar admin panel is highly customizable. Extensions allow adding and changing the behavior of existing Filament resources. This is useful for adding buttons, custom functionality, or modifying how data is displayed.

## Extending Pages

To extend a page, create an extension class and register it with the `LunarPanel` facade.

### Extending an edit page

The following example registers a custom extension for the `EditProduct` page:

```php theme={null}
use Lunar\Admin\Support\Facades\LunarPanel;
use Lunar\Admin\Filament\Resources\ProductResource\Pages\EditProduct;
use App\Admin\Extensions\MyEditExtension;

LunarPanel::extensions([
    EditProduct::class => MyEditExtension::class,
]);
```

### Extending a list page

The following example registers a custom extension for the `ListProducts` page:

```php theme={null}
use Lunar\Admin\Support\Facades\LunarPanel;
use Lunar\Admin\Filament\Resources\ProductResource\Pages\ListProducts;
use App\Admin\Extensions\MyListExtension;

LunarPanel::extensions([
    ListProducts::class => MyListExtension::class,
]);
```

## Extending Resources

Much like extending pages, resource extensions are created and registered with the `LunarPanel` facade.

The following example registers a custom extension for the `ProductResource`:

```php theme={null}
use Lunar\Admin\Support\Facades\LunarPanel;
use Lunar\Admin\Filament\Resources\ProductResource;
use App\Admin\Extensions\MyProductResourceExtension;

LunarPanel::extensions([
    ProductResource::class => MyProductResourceExtension::class,
]);
```

## Extendable Resources

All Lunar panel resources are extendable, allowing custom functionality to be added or existing behavior to be changed.

```php theme={null}
use Lunar\Admin\Filament\Resources\ActivityResource;
use Lunar\Admin\Filament\Resources\AttributeGroupResource;
use Lunar\Admin\Filament\Resources\BrandResource;
use Lunar\Admin\Filament\Resources\ChannelResource;
use Lunar\Admin\Filament\Resources\CollectionGroupResource;
use Lunar\Admin\Filament\Resources\CollectionResource;
use Lunar\Admin\Filament\Resources\CurrencyResource;
use Lunar\Admin\Filament\Resources\CustomerGroupResource;
use Lunar\Admin\Filament\Resources\CustomerResource;
use Lunar\Admin\Filament\Resources\DiscountResource;
use Lunar\Admin\Filament\Resources\LanguageResource;
use Lunar\Admin\Filament\Resources\OrderResource;
use Lunar\Admin\Filament\Resources\ProductOptionResource;
use Lunar\Admin\Filament\Resources\ProductResource;
use Lunar\Admin\Filament\Resources\ProductTypeResource;
use Lunar\Admin\Filament\Resources\ProductVariantResource;
use Lunar\Admin\Filament\Resources\StaffResource;
use Lunar\Admin\Filament\Resources\TagResource;
use Lunar\Admin\Filament\Resources\TaxClassResource;
use Lunar\Admin\Filament\Resources\TaxRateResource;
use Lunar\Admin\Filament\Resources\TaxZoneResource;
```