No Product name in final Receipt

Can you advice settings for Robokassa, where I can implement Name of bought Product in Receipt?

admin/commerce/config/payment-methods/manage/commerce_payment_commerce_robokassa/edit/3

Here a Can see only these selectors:

site:current-user:roles:
site:current-cart-order
site:current-cart-order:owner:
site:current-cart-order:commerce-line-items:
site:current-cart-order:commerce-order-total:
commerce-order
commerce-order:owner:roles:
commerce-order:commerce-line-items:0:
commerce-order:commerce-line-items:1:
commerce-order:commerce-line-items:2:
commerce-order:commerce-line-items:3:

I can choose only one selector (now we have site:current-cart-order)
There is a help text :
The data selector helps you drill down into the data available to Rules. To make entity fields appear in the data selector, you may have to use the condition 'Entity has field' (or 'Entity is of bundle'). More useful tips about data selection are available in the online documentation. ( https://www.drupal.org/node/1300042 → )