Add plot to nominal

[SkafteNicki]

What does this PR do?

Fixes part of #1406

Before submitting

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• Did you read the contributor guideline, Pull Request section?
• Did you make sure to update the docs?
• Did you write any new necessary tests?

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[codecov]

Codecov Report

Merging #1581 (1b17a44) into master (2a8f074) will increase coverage by 2%.
The diff coverage is 89%.

Additional details and impacted files

@@           Coverage Diff           @@
##           master   #1581    +/-   ##
=======================================
+ Coverage      87%     88%    +2%     
=======================================
  Files         223     223            
  Lines       11676   11708    +32     
=======================================
+ Hits        10147   10357   +210     
+ Misses       1529    1351   -178