Add better static analysis, IntelliSense, and general formatting abilities (like allowing tabs) in the "Advanced" editor
The current editor has a lot to be desired. It's annoying when I click my cursor between characters and drag the mouse to select text that the selection starting and ending positions jump to include more. It's like it's forcing me to select a "word" but it's never what I want. The best editor I've founds so far is Notepad++ with the M language formatting. Here is more info about it: https://ssbi-blog.de/technical-topics-english/power-query-editor-using-notepad/
