Domain redirection will be enabled within 10-20 min after the service is ordered.
You cannot setup redirection for an undelegated domain name; however, DNS support is included in the domain redirection service and when you order redirection under the same contract where your domain is registered, all the settings will be applied automatically and you won't need to specify DNS servers on your own.
Redirection to social media can be set up in the same way as to any other website: you just need to specify a webpage link in the "Redirection address" field after ordering the domain redirection service.
You can modify the service settings in the "Manage your account" — "Services" — "View and change data" section.
A step-by-step guide to setting up domain redirection and preparing domains for proper service operation can be found in the "Help" section.