Use name when Universal Mention isn't found

For example, I create a post to Instagram, Twitter, Facebook & LinkedIn. The person I'm mentioning does have an Instagram profile & Twitter profile, but not Facebook Page or LinkedIn page. Right now, I have to customize the Facebook and LinkedIn caption and change the "@" mention to a plain text name, which is taking time. It would be great to allow a plain text "name" to be used for those profiles where an "@" mention doesn't exist or work, saving me time.