Advice needed - how do I Zoom?

Somehow I have managed to Zoom in but I can’t work out how I did it or how to Zoom out again.[li]

I don’t use a mouse but a touchpad. I’m using Windows 7 on a laptop. Any help would be appreciated.

If it is possible without a scroll wheel, I don’t know how.

Check out your mouse pad options. Mine has a “Zoom” Option. If that’s enabled, you can zoom in and out by sliding your finger along the left side of the pad.

StormKoala it must be possible as I managed to zoom in:)

Thanks Shawn01752 I’ll try that next time I play. And it sounds like something I could have done without realising what I was doing.[li]
edited by reveurciel on 5/9/2014

I use page up and down - is that not an intended hotkey?

Tanaquil - thank you that is much easier and quicker for me.