You can import your tree or build it from scratch, and then add a dimension to your tree to manually indicate the research level for each ancestor. See Jonny Perl’s blog post about the new dimensions feature for detailed instructions and examples of other dimensions you can now add to your tree.
This chart shows the levels on ten generations of my mom’s tree. I marked three unknown fathers of illegitimate children in red (level 0, unknown ancestor). I have other unknown ancestors, but they are the result of not having completed the research rather than solid brik walls, so I left those grey. My line back to Eleanor of Aquitaine that I have been blogging about stands out as the only green line where I’ve met the Genealogical Proof Standard for all the generations in this chart.
I love this new tool! You can add the reserach levels from the tree view that has all the names (not shown here because of privacy reasons) so it is easy to see which ancestor has which level. So much easier than Excel!