Laptop touchpad center click

I have an acer aspire timeline x with a synaptics touchpad.

In my experience, you can perform center clicks by pressing both click buttons on the touchpad. However, it doesn't work on this touchpad (at least i haven't found the settings for it).

Does anybody know if I've missed something, or if there are any macro programs out there that will do this for me? I looked at all the settings in the synaptics control panel, but i can't find it. There is a setting to set either the left or right button to center click, but i don't want to do that (cause i need them to right click and left click haha...)