mouseemu software package provides Emulate mouse buttons and mouse wheel, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install mouseemu
mouseemu is installed in your system.
Make ensure the mouseemu package were installed using the commands given below,
$ sudo dpkg-query -l | grep mouseemu *
You will get with mouseemu package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Utilities |
| Package | mouseemu |
| Version | 0.16-0ubuntu9 |
| Description | Emulate mouse buttons and mouse wheel |
| Sub Section | Utils |