I have made some changes in the text handling examples, but we are not planning to reduce the complexity of the examples. The text handling examples in the Tips & Tricks category are based on the 15. Text handling learning tutorial, the How to display values with units set in Project Preferences? is based on the 16. Advanced Text Handling learning tutorial. I hope that reading these tutorials will make it easier to understand the Tips & Tricks sections.
Library Developer, Library Team