right column side bar that indexes/jumps to ......

[ptegler]

Describe the enhancement

The premise is a vertical menu, that indexes all the sections of a yaml file.
EG sensor: output: etc hearders, as well as any -platform .... or etc sub headers.

Use cases

Since you already have a function of tracking headers (not sure what 'you' call them) so the top xxx : section remains at the top of the page while drilling down, this right column menu would let you jump back and forth between sections, platform, sensor section, display it.print lines .etc etc very quickly rather than repeated scrolling and searching.
In the 3D Printer world, the RATRIG RatOS operating system uses a web page based config file system as well. This right menu is a new feature they recently added. I'm wishing EVERY IDE had this!

Visual examples

ok...I created a screen capture of the editor open.
Where esphome uses 'zero indention to denote 'titles'
RatOS uses [bracketed names] and no indention anywhere
and heavily subdivides config statements into INCLUDE files
Clicking on any title in the right menu, jumps you to that title
rightmenu2-for-esphome.png

rightmenu1-for-esphome.png

This makes it SOOOO easy to go back and find duplicate I/O designations or change device or icon names ....
ymmv jfft

Anything else?

edited... added here.... another thought.... debug compile failures already identify the offending line number. Could that line error, result is a color coded right menu item when you come back into the editor from a failed compile ! ? something linked to the 'red dots' that denotes invalid yaml text?