This looks very interesting.

When I hold down Left Mouse and another key say H. The input box shows the H highlighted in blue. I get the same when I do a Right Mouse and hold a key down. Is this on purpose? Is that how a Left Mouse key would look in the input box?

I read the help page, I am trying to understand exactly how this works and what uses it would have. If I create an input of <capslock> Rshift M if I hit that input what would happen? would a keymap or bind in the game be triggered? or would this be something specific to Mojo?