[Brent] Small items other electrical note

[dracos]

Uses most of code from K&S notes commit (might be a bit of work done to merge both as have rejigged slightly)
For https://3.basecamp.com/4020879/buckets/33769634/todos/6624115227
[skip changelog]

[codecov]

Codecov Report

Merging #4657 (305f8b8) into brent-initial-setup (a339eaf) will not change coverage.
Report is 9 commits behind head on brent-initial-setup.
The diff coverage is n/a.

❗ Current head 305f8b8 differs from pull request most recent head ab825c8. Consider uploading reports for the commit ab825c8 to get more accurate results

@@                 Coverage Diff                  @@
##           brent-initial-setup    #4657   +/-   ##
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  Coverage                69.23%   69.23%           
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  Files                       42       42           
  Lines                     4951     4951           
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  Hits                      3428     3428           
  Misses                    1523     1523           

[MorayMySoc]

Couple of small points, but think the important stuff works