DOCS: add advanced fields calc doc

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Codecov Report

All modified and coverable lines are covered by tests :white_check_mark:

Project coverage is 83.17%. Comparing base (c4d9686) to head (08a0726). Report is 1 commits behind head on main.

Additional details and impacted files

```diff @@ Coverage Diff @@ ## main #4875 +/- ## ======================================= Coverage 83.16% 83.17% ======================================= Files 118 118 Lines 54144 54144 ======================================= + Hits 45030 45032 +2 + Misses 9114 9112 -2 ```