Maybe add a unimpaired like mapping? `cow` and `coi` are already taken.
" diff mode {{{2
set diffopt+=filler " show filler lines
set diffopt+=vertical " always vertical split
" diff mode {{{2
set diffopt+=filler " show filler lines
set diffopt+=vertical " always vertical split
-set diffopt+=iwhite " ignore white space
set diffopt+=context:10 " 10 lines context between changes
" reading and writing files {{{2
set diffopt+=context:10 " 10 lines context between changes
" reading and writing files {{{2