A few things that helped make it easier for me to edit YAML with Notepad++:
Make N++ display whitespace - under View >> Show Symbol, turn on “Show White Space and TAB”
Make N++ use spaces instead of tabs - tabs are going to break YAML parsing. But you probably don’t want to turn off the tab character globally. N++ lets you make it so that when you hit TAB, it’ll insert the number of spaces you choose. Go to Settings >> Preferences and choose Tab Settings. Scroll down in the “Tab Settings” list to “yaml”. Uncheck the “use default value” and choose “replace by space”. When you open a YAML document, you may need to choose “YAML” under the “Language” menu to let it know that you’re editing a YAML doc.
Quickly Indenting/Outdenting - you can select a block of text in N++ and hit TAB to indent the entire block. Shift-TAB will outdent the block.
Commenting Code - You can use CTRL-K to comment a block of code (prepend with #) and Shift-CTRL-K to uncomment a block.
BRUH Automation has a good video showing you how to set up SAMBA file sharing so that it’s easy to edit your configuration.yaml remotely.