right-click to offer "Open With..."

I would find it very helpful to add a right-click option similar to the Finder that let's me chose an alternative application to open a file with. As it is, Punakea has replaced most of my trips to the Finder, and one of the few occasions when I still have to go to the file in the Finder is if I want to open a PowerPoint file with Keynote (for example). Shouldn't be too hard to implement, I assume? But little details can make a big difference in usability.