Yes, all of this can be achieved using plugins, including immediate visibility of tabs and project structure. Check out powerline(https://github.com/powerline/p

Yes, all of this can be achieved using plugins, including immediate visibility of tabs and project structure. Check out powerline(https://github.com/powerline/powerline https://github.com/powerline/powerline) or vim-airline(https://github.com/bling/vim-airline https://github.com/bling/vim-airline). A nice configuration for Haskell which I often use to bootstrap new machines is haskell-vim-now(https://github.com/begriffs/haskell-vim-now https://github.com/begriffs/haskell-vim-now). That includes almost all the features you mention.