Text Mode Auto-Complete and Syntax Error Detection

I build a lot of reports that rely on text mode for columns, filters, and grouping. One of my major issues with Text Mode is having to jump back and forth between the Text Mode Window and API Explorer to find the right references to include, or having to manually review my syntax to ensure that the code is accurate. 

It would be incredibly helpful if Text Mode windows behaved like modern IDEs (ie Visual Studio Code, Eclipse, etc.) where Text Mode can auto complete or suggest field references or even lines of code as well highlight syntax errors to reduce errors and frustrations when using Text Mode.