Editing Computer Mice and Trackpads (section)

=== Configuring imwheel ===

Open a terminal and type <code>cd ~</code>, then <code>nano .imwheelrc</code>.

In that file, you will want to paste (or type) the following:

 <nowiki>
# change chromium to your preferred browser. This is a regular expression, so in imwheel, any process that contains the word chromium in it. This does not include the "normal" Google Chrome for Linux (that you'll have to install separately, see the Wiki page "Installing Google Chrome" for detail how to do that.
# Both ^chromium$ and ^firefox$ work. They do need to be in quotes though. 
"^chromium$"
        None, Up, Button4, 3
        None, Down, Button5, 3</nowiki>

The 3 says how many lines you want to scroll at a time. I personally recommend 3, some people prefer 4.

Then press <code>Ctrl+X</code>, <code>Y</code>, then <code>ENTER</code> keys. This will save the changes to your file exit <code>nano</code> text editor.

The final step is to run it.