When I use sitemap connector and pick Date as a Dimension, I only see data from one day & not something like the image below. Also, is there a connector which can grab the "Reasons" from Index coverage of New Search Console?
to get a graph like that, you'll need to select "time series" as your report element and then choose a longer time period.
For the new Search Console features, we're currently working to bring it to Supermetrics. You'll be notified when it's available on our monthly newsletter.