Cant upload multiple images

[s-fog]

Cant upload multiple images on relation.

App Model code

public function registerMediaCollections() : void
{
    $this->addMediaCollection('images')
        ->registerMediaConversions(function (Media $media) {
            $this->addMediaConversion('thumb')
                ->fit(Manipulations::FIT_CROP, 202, 222)
                ->keepOriginalImageFormat();
        });;
}

Nova resource model code

Images::make('Изображения', 'images')
                ->conversionOnDetailView('thumb')
                ->conversionOnIndexView('thumb')
                ->setFileName(function($originalFilename, $extension, $model){
                    return md5($originalFilename.uniqid('', true)) . '.' . $extension;
            }),

Just cant select multiple images on dialog with select, can pick only one. No method ->singleImage()

Same configuration on other model works fine, maybe it is because this is relation? Can someone help with it?