I agree that global shortcuts are important. Until there is more of this functionality in UR, one way to accomplish this is to use a macro program. I use this free one:
http://members.ij.net/anthonymathews/MacroMaker.htm
I used it to capture a web page, create a quick note, go to a search that shows a task list, etc. You can run a macro with a keystroke or from an icon. You have to add delay between keystrokes sometimes to make it work, but it is doable.