Expand/collapse all requests for tree view

[marex333]

My team develop sa software. We do use Insomnium to test our API. We keep it as collection.
We started to have problem with adding new requests or test already created ones.
Whenever a team member want to add or test a request it gets imported through JSON and he/she is suddenly flooded with view of all the requests that are put into folders that all are opened by default.
I belive that there should be choice to see all the requests that collection has. Or at least have an easy collapse way.

Steps to reproduce:

• import collection through .json file with many requests that are sorted in the different files
• all folders are expanded in the view tree

What's the issue:

• lack of clarity. Folders are meant to group things and limit visibility of others. Right now all expanded folders makes them work like separators.
• time-consuming closing every each folder for neat view

Idea how to fix it:

• add switch in preferences: "Collapse/Expand all folders at new collection import" (or simply first opening)
• add button/option at top of tree (next to 'filter') similair to IntelliJ collapse/expand buttons:
  

If it's already implemented and somehow I missed it then sorry.