What is the brand of your Trackpad? Mine is a Synaptics Touchpad, and the Company supports that feature using the Setting Options. I'm not trying to advertise it, just saying that maybe your device software-driver has a solution for it. mine has Synaptics + Scrybe Software completely free.
You can also **TRY THIS** http://www.uscrybe.com/download.php
- that's the link for Scrybe it will also update your driver to the latest version