Adjustable Suspension E2 help :\

Im makeing a adjustable suspension truck and i want to adjust it using buttons or something else using E2…i want to learn ,im completely new to gmod and codeing.I have tryed useing google…and youtube and i simply can not find it.:/…fyi all the hydos…are different lenths…I want to know how to use E2 with this…or someone right me a code …thanks

http://forum.facepunch.com/showthread.php?t=828901