This is what I usually do when I edit RPGM
MV saves (XP, VX and VX Ace have a different save system):
- download
You must be registered to see the links
- unzip the archive
- open the index(.html) file in your browser (the devs suggest Google Chrome)
- click "Choose Files" to load your save (it is in the www\save folder of the game)
- edit the file (
You must be registered to see the links
)
- click "Save"
- replace the older save with the edited one
You don't really need Notepad++, the tool I've linked already includes a light text-editor.
But if you prefer to use Notepad++: once you have loaded the save (#4), copy the text and paste it into Notepad++, then edit it, paste it back into the browser and proceed with #6.
If you use Notepad++, the JSON plugin
You must be registered to see the links
may be helpful.