Side-scrolling on iTunes with Touchpad

Hey everyone.

I am brand new to Windows, and can't seem to find a way to 2-finger side-scroll with the touchpad on iTunes. 

I have numerous columns displayed for all playlists, and I have to keep clicking at the bar below to see the columns to the right, and then back again on the left.

My searching skills are probably lacking, but couldn't find anything about this issue. Couldn't find options in the touchpad or iTunes preferences either. 

Any help with this would save me a lot of annoyance. Thank you in advance!