Vim in multiple keyboard layout

I've created a plugin (GitHub repository)! It should show up in the plugin repository in the next day or two.

Screenshot of "custom CodeMirror .vimrc" plugin in plugin repository.

After installing, pressing ctrl+shift+P and searching for vimrc allows editing a very limited .vimrc-like file that supports map, noremap, imap, inoremap, etc:
screenshot of edit .vimrc in the command palette