One feature I would like to see is the ability to quickly maximize the editor window beyond the customary frame it is allotted to. I don't know how hard this would be to implement, but I'm thinking of either allowing the editor window to turn into a standalone, like the ASE window, or perhaps a slightly more complicated scheme, such as that found in e-Sword, for example, where they have buttons which allow you to quickly maximize the commentary window, the dictionary window, and so forth.