[LVL ED] Help with Laptop

[Imevil23]

So I use a toshiba laptop all the time. Here's the thing. In the editor, i found out that to change the center point of view, you need to use the middle mouse button. Hmmm... let me look at my mouse. It's a touch pad with two buttons, left and right. I've looked around the internet for a while and saw that if you press both buttons, it counts as a middle button. But that didn't work. I even found out you can get mouse emulators for laptops. I press the middle mouse button on that and it STILL doesnt work. Are there any buttons I can press or other ways for me to change the center point. If you help me, I might even let you have a sneak peek at my map "Haunted Mansion". Sounds a little cliche, but trust me, I plan to do things different in my map. So help a bro out plz! + I don't have the money for a usb mouse yet, so anything but that.