localcfg/plugins/vim_unimpaired.vim

Enforce vim script implementation to reduce ambiguities and improve robustness:

scriptversion 4

A fair few of the applications I use in my work support line or cell exchange via <M-{Up,Down}>, configure vim to match:

imap <M-Up> <C-o><Plug>unimpairedMoveUp
imap <M-Down> <C-o><Plug>unimpairedMoveDown
nmap <M-Up> <Plug>unimpairedMoveUp
nmap <M-Down> <Plug>unimpairedMoveDown