How to show only identical lines?

[Pierre-de-la-Verre]

Hi,
when comparing text files I want to show only the lines which are identical on both sides. Is it possible (I assume yes ;-) )

[sdottaka]

In the View menu, go to Diff Context and check both 0 Lines and Invert (Hide Different Lines) – as shown in the attached screenshot.

[Pierre-de-la-Verre]

Great - thanks.
Now I understand this feature ;-)