Attach and associate

To link records that already exist, add AttachAction and DetachAction for a many-to-many, or AssociateAction and DissociateAction for a has-many.

use Illuminate\Database\Eloquent\Model;
use Xelqun\Panels\Actions\AttachAction;
use Xelqun\Panels\Actions\DetachAction;

public static function headerActions(Model $owner): array
{
    return [...parent::headerActions($owner), AttachAction::for(static::class, $owner)];
}

public static function recordActions(Model $owner): array
{
    return [...parent::recordActions($owner), DetachAction::for(static::class, $owner)];
}

In the demo, associate is below an author's form, and attach is on the Tags tab below an order's form.