RepRap Firmware Retraction

I wanted a way to fine-tune certain settings, retraction is one of them. Before I would use S3D's multiple processes to change the retraction per a given height. I needed a way to do that with PrusaSlicer. I learned that RRF has firmware retraction. For me, that is a game-changer as I can now change retraction settings on the fly. I needed a way to make those changes automatically. This is where PrusaSlicer's **Before layer change G-Code** comes to play. A few things need to be in place before we get to the code:
* The extruder(s) M92 value must be calibrated as best as possible
* The slicer's flow rate also must be tuned. **This is important if you have to change the M92**
* Firmware retraction needs to be enabled. At the end of your "config.g" add: **M207 S0.80 F2100 T1500**. **M207** is the G-Code for firmware retraction. **Sx.xx** sets the amount of filament to retract (For a V6/Slice Mosquito/Magnum 0.80mm is a good starting point). **Fxxx** set the speed of the retract (2100 m