I like VS Code and sublime editor and in particular their default behaviour of preview the file. When you single click on a file from file explorer pan, it would open it in a temporary tab, unless a change is made in the file or opened with a double click on file, which opens it on persist tab.
Recently I've to use IntelliJ IDEA in a project and so far I like it this particular functionality is holding me up to adopt it completely. How to achieve this temporary/preview tab behaviour in IntelliJ IDEA?
You can find some workarounds in the open request, or just follow it for updates:
This is now a feature in version 2020.3+