{{ strtoupper(__('app.url')) }} {!! Form::text('config[override_url]', isset($item) ? ($item->getConfig()->override_url ?? null) : null, array('placeholder' => __('app.apps.override'), 'id' => 'override_url', 'class' => 'form-control')) !!}

Token ID {!! Form::text('config[api_token]', null, array('placeholder' => 'Token ID', 'data-config' => 'api_token', 'class' => 'form-control config-item')) !!}

Token Secret {!! Form::text('config[api_secret]', null, array('placeholder' => 'Token Secret', 'data-config' => 'api_secret', 'class' => 'form-control config-item')) !!}

Stats to show {!! Form::select('config[availablestats][]', App\SupportedApps\Bookstack\Bookstack::getAvailableStats(), isset($item) ? ($item->getConfig()->availablestats ?? null) : null, array('multiple'=>'multiple')) !!}

Test