I'm not sure what the developer's stance is as far as mirroring the behavior of popular Vim plugins, but it would be quite awesome if Qt Creator could support some subset of vim-unimpaired bindings by default. (See repository at https://github.com/tpope/vim-unimpaired; documentation at https://github.com/tpope/vim-unimpaired/blob/master/doc/unimpaired.txt)

Please feel free to close if this is out of scope.