Collapse the custom email folder structure completely

Situation: You have several levels of custom folders created under " v … More " in your email view. For example:

Family

Close Family

  >>>Parents
  >>>Siblings

Friends

University
School

Work

And so on, so that you can store emails in the relevant folder.

You have been working on email for some time, and you have several branches of the folder tree open, so that it is confusing to navigate.

You collapse the folder tree at the root, by clicking on the down arrow ( v ) beside " … More "

You re-open the folder tree, but you find that all the folders which were previously expanded, are expanded again, so the view remains confusing.

I request that you change it so that when you collapse the folder tree, ALL the branches are also collapsed, so that when you re-open the folder tree it is much easier to navigate, with a “clean” tree.

Thanks!