How to map keys in VsVim to Visual Studio commands?

Is it possible to map keys in VsVim to Visual Studio commands? For example, can I map gb to View.NavigateBackward?

You do it via your _vsvimrc file.

This should do the trick:

nnoremap gb :vsc View.NavigateBackward<CR>

You can even map extension commands, like those from Resharper:

nnoremap gi :vsc Resharper.Resharper_GotoImplementation<CR>

The full documentation is here:
github.com/jaredpar/VsVim/wiki/VsVim-Nonstandard-Behavior