Determine command name in vimperator

Question

I would like to customise vimperator using the .vimperatorrc file. For now I am doing things like

:cmap <C-g> <Esc>

so that C-g cancels inputing a command, just as does. However, I would much prefer bind the key directly to the command. The problem is that I don't know the name of the command that is mapped to. Is there a way to see that? Similarly I would like to map the effect of or to <ù> but have trouble finding the name of the command.

For emacs users, the feature I am looking for is something similar to C-h k with the default key bindings.