WARNING: UNSTABLE. For a fuller description and stable build go to https://github.com/hamishtodd1/hamishtodd1.github.io/tree/master/cvr or, for a direct link to the page, http://hamishtodd1.github.io/cvr
This repo contains a more fully-featured but less well supported version. It contains a python script that links to Coot, the other one linked above doesn't. However, it would take a while to rebuild this.