Here\'s a demonstration of the feature in IntelliJ (https://www.youtube.com/watch?v=EtnI2doW6XE)?
In case the video isn\'t viewable, basically the user presses a key-com
Are you just looking for CTRL-P That brings up a file list. Which is searchable. You can then tab down and right arrow opens up that file. Enter will open a split editor on the file.
Also, if you CTR-p and then type ? you will get a list of keys you can hit such as to "Go to Symbols" and much more in your file or workspace.
And look at CTRL-R it probably does exactly what you are looking for as far as files go.