Trello-Conxtext-Menu
###I am not affiliated with Trello or Fog Creek Software
This is some proof of concept JS code to bind secondary click to menus in Trello.
Right click on a list to bring up the list menu, right click on a card to bring up the card menu
####Try it out Paste the contents of trello.contextmenu.js into the javascript console of your browser window (or tab) that has Trello opened