Is it possible to start showing code in scroll bar in Intellij Idea? I mean when I see a minified version of my code in the scroll bar. I do not know how it is called. I remember it being called something like scroll map.
What you are looking for is called a Minimap. There is no default view for this, but you can install the plugin CodeGlance CodeGlance Pro
To install the plugin, go to File -> Settings...
in the left tree, select Plugins
, then Browse Repositories
. Now search for CodeGlance, install and restart IntelliJ