There have been wistful mentions of things like this before, but as far as I know nobody’s developed anything for public release. It sounds like it could be useful, and whether it’s “easy to implement” is entirely in the eye of the beholder… 
There have been wistful mentions of things like this before, but as far as I know nobody’s developed anything for public release. It sounds like it could be useful, and whether it’s “easy to implement” is entirely in the eye of the beholder…