Even though PBS files are simply just text files that follow a very basic format (which can be found on the wikia), editing Pokémon can get tedious. That because you have to type out the property (such as “GrowthRate=”, for example). This editor is here to help with that. It may seem annoying that it screams at the smallest mistake there is, but that does mean that your PBS will not contain errors or typos (unless there is a flaw in the program, in which case you should immediately report your error).
Download & How to use
It will download a file called “PBS+ Updater.exe”. The updater should be place in your root folder. This means that it should sit alongside folders such as the PBS folder, Audio, Graphics.
How to use: read here.