windows 7 left+right click = middle

>The reason is less stress on the fingers.
Stress to the fingers )))) something new. I would have understood if the wheel is not pressed, as for example Logitec...

Transferring to the laptop, its touchpad is innate :) good Luck.

buy a mouse with N>3 buttons, the button under your thumb hang middle click to another ctrl+c to another ctrl+v...

you can buy the mouse with the script filling type a4tech 810F g10 (I have this), there can be hung on the right the script button, which if pressed, and right and left will be average, otherwise the right will be exactly what you need.