Image Info next to the lines

Hi,
I wanted to know if it's possible to have image info next to line numbers. For example in Intellij you can have an info next to the line.

I used LineNumberFactory to add line but I can't find abything about adding infos.

[TomasMikula]

See this StackOverflow answer. Perhaps we should add it to the demos.

[JordanMartinez]

Closed via #364.