showcontext.vim opens a scratch buffer in the current window that shows the last line with less than or equal indentation to the current line. This allows you to see where you are in a file without scrolling back up. You can then jump to any line shown in the window with a configurable binding (Default: Enter).
Out of the box, showcontext.vim does nothing; you must map the function
ShowContext_toggle() like so:
nnoremap <leader>lc :call ShowContext_toggle()<CR>
That's it!
Credit to Rich at vi.stackexchange for doing most of the work. https://vi.stackexchange.com/questions/20078/plugin-to-show-enclosing-indentation-levels/20089#20089
I use Vim-Plug.
Simply add Plug "mpjuers/showcontext" to your .vimrc in the appropriate
place and :PlugInstall. Should work with other plugin managers or manual
installation (see docs) as well.