20.1 RStudio
You can certainly use notepad or base R to write your scripts, in the same sense as a dog could walk on his hind legs to get places. It works but not well. RStudio is built for the purpose of efficient, effective, and beginner-friendly script coding.
Ctrl-Shift-R creates a section label, which is nothing more than a consistently formatted comment. Unless you enter a large number of words, the length of the comment is always the same. If you use it consistently in your code, it serves as ...