WebStorm : How to import multiple project in same window in WebStorm
From Webstorm 2019.2 - you can open multiple projects in the same Webstorm instance.
File --> Open --> Go to the project directory --> Open:
In the Open Project dialog , select "Attach".
Webstorm supports opening two projects in one window now.
All you have to do is open first project then
File --> Open --> Select second project folder and click open --> Then click Attach from the next dialog box
This is working in Ubuntu
WebStorm doesn't support opening multiple projects in the same frame, however you can add multiple content roots to the same project: