Great - I see the Yoast tab. Thanks!!
Yoast tab should be displaying, turns out that plugin was not modified to work with custom post types, i have added in a fix and this should be working now.
I download and installed the latest version of ImportWP Yoast SEO via the Releases page on github ( https://github.com/jcollings/importwp-yoast-seo/commit/9d83f9edb9f5021187e66e7589b90c8ba5f597fe), but after activating the plugin, I do not see the new tab for Yoast when editing an importer. Any ideas?