docs: updating docs and usage guide to match the latest work on ui ids

[felipemontoya]

This PR udpates the notes on usage in preparation for verawood

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[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 95.13%. Comparing base (3aefaad) to head (5ef8565).
⚠️ Report is 4 commits behind head on main.

Additional details and impacted files

@@           Coverage Diff           @@
##             main     #214   +/-   ##
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  Coverage   95.13%   95.13%           
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  Files          67       67           
  Lines        7322     7322           
  Branches      387      387           
=======================================
  Hits         6966     6966           
  Misses        267      267           
  Partials       89       89           

Flag	Coverage Δ
unittests	95.13% <ø> (ø)

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[sarina]

Sorry for the delayed review, this looks great. One suggestion to clarify what the third id slot is used for.