Easy Spool Holder - Spool Safety Lock (Prusa MK2 / MK2S / MK3)

I have been using IsmaelPR1's spool holder (https://www.thingiverse.com/thing:1768975) now for several months and have recently also made a remix of the spool holder which you can find here: https://www.thingiverse.com/thing:2661364

On my Prusa MK2S I use a very handy End-G Code which raises the extruder to the left upper corner after the print has finished. The benefit of this code is that the extruder is always accessible and I can easily change filaments, see if the nozzle is still clean,