Me and Satyroom did some experimenting to figure out a way to program movement routes in RPG Maker MV with pure script. It took a LOT of trial and error but we figured out a way that works consistently! What this means is that games in RPG Maker can have entire scenes coded with just text. So in theory you can have entire scenes saved as .js files for easy editing in your coding software of choice. Making RPG Maker events without even opening RPG Maker til the very end! :D
Satyroom is immediately using this stuff for his own personal projects, and I plan on using it in my own as well. I know a roguelike has a lot of complicated events I'd like to be able to design as an individual script.
The attached picture is the script that finally managed to work smoothly, if you wanna know how to run scripted routes without using the in game pieces, this is a good template.
The self switch B is to turn it off, though repeat is on so that doesnt come up at the moment. This script causes the player character to jump, then pause, then repeat. With repeat on it goes forever, so if you use this be careful with that!