All instrument using LMMS built-in instrument, and please don't ask about guitar preset, i only using built-in preset that i modified with little effort. Also even if you have preset to be used in your music, you still need to tune the guitar to suit to your music, so i suggest you study the electric guitar basic first :) , the knob and slide are in Zynaddsubfx.

https://www.youtube.com/watch?v=hgoJ9Hb68Po