How to expand and collapse individual parts of the code in Atom

[Lora]

Hello,
I would like to have a better overview in my long code. I know it from Stata that you can create individual sections that you can then expand and collapse. Is this also possible in Atom?
My idea would be to have different sections in my code that I can then collapse and quickly find the place in the code that I am looking for.

Many thanks in advance
Lora

[menator01]

There are little arrows on the left side next to the line numbers. you can collapse and expand classes and functions

[Lora]

Thank you very much. But I was looking for something else. Not just collapsing functions, but larger pieces of code, including comments and different parts that you "merge" into one section.