Login to the Domain Manager and go to Contacts.
Create a Contact or lookup a contact you wish to add the .RU additional properties to.
Next, you're going to add additional properties to the desired contact. In this case you will choose for the .RU (TCI) option.
Once you've selected the .ru properties, you'll be directed to the page below.
Fill out the requested information that is applicable for the type of registrant that is requesting the registration (organization or natural person). Take note: this information must be correct and valid.
Once you've submitted all the requested data, submit the form by clicking 'Save properties'.
You've now successfully added additional properties for .RU. This will be clearly visible on the contactpage as shown below.
The contact you've added the properties to is now ready to be used as registrant contact for .RU domains.