Open nested directoryies without entering them

If I want to look which files are inside a certain directory from Jupyter Lab, I have to double-click on that directory to go inside it. I find that it would be better to have an arrow next to the directory names which can unfold it (as can be done in any decent text editor or IDE, such as atom, vscode or pycharm). That way it would be easier to see the structure of a certain project. I’ve added an example image from atom below (look at the src/ directory).

Is there an option in Jupyter lab to do this? If not, how can I submit a feature request?

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It looks like there is an extension for tree view as a work-in-progress according to the discussion here.