java - IntelliJ IDEA - Open projects in same workspace similiar to "Add to currently opened projects" in pycharm -

i create / open project in intellij idea. want add project in same window. but, each time create / open project, opens new instance of intellij new window or on same window overriding existing projects.

i tried - https://www.jetbrains.com/help/idea/2016.2/opening-multiple-projects.html.

i know there pop in pycharm - "add opened projects" helps. there similiar in intellij idea?