Board Thread:Support Requests - Getting Technical/@comment-33908158-20180413001027/@comment-26923519-20180413030139

The Templates Wiki has the Familytree template which you can import. It seems to be a version of Wikipedia's old Familytree template, the precursor to Chart. It also requires multiple templates you have to import.

You go to Special:Export on the original wiki, and then to Special:Import on your own. See Help:Exporting pages.