How to deploy a custom list with custom Schema and have it synchronize across variations?

Question

I'm digging through SharePoint.Server.Publishing.Variations, but can't find anything useful.

When I create a custom list (BaseTemplate=100) in a variation site. I get the new ribbon tab "Variations":

However when I deploy a custom list (e.g. ID 10000) the variations tab is not existing. I also cannot add the list to the variation hierarchy so it is automatically synched across variations.

How do I synch a custom list across variations? Can I work with content types (site collection based)?

My goal is to create a news display webpart with a news list backend. The list shall be automatically synched across variations and each variation hence has the news in their own language. I fail at creating the synched list, the webpart with different settings per language is no problem.

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EDIT: It seems that synchronization is only possible with custom lists as described here: Variations Tab missing from List. What is the best practice then? Add everything else via feature receiver to that list (e.g. attach content type, different views)? I guess I can't use a custom schema then.

Answer 1

When you create a custom list definition with a new id you loose some out of the box functionality that are coupled to a base template.

Best to create a list instance with a custom schema. This way you can deploy youre customized list and keep all the functionality.

Second way is to create youre definition with the same type. But thats not recommanded.