Are there any editors that can help me follow function tags without ‘breaking context’? Almost like how Brackets has inline CSS editing (brings up another part of the file so that you can easily compare and edit). Like floating windows, in a way. For instance, if I click a function, I can jump / edit it without immediately exiting the file with a pop-up or like with Brackets in-line.

VSCode almost does this when you "Find all references"

Code Bubbles is a bit like that