Adding own search verticals is a common task in the Search Configuration in SharePoint. Here I want to share a code sample for achieving this programmatically. I hope, this model can be added to SPMeta2. First of all, Search Verticals are dedicated Search Results Pages and links to them. How to add them manually is described on technet:
How to add a custom search vertical to your search results page in SharePoint 2013 There is no API in CSOM for that.