Nope, we get the windows run dialog. That's the only one that's available by default (!run bang provided by the core) in LS. If you're talking about lsxcommand, then that's something specified in your theme settings. There are no "default" settings for lsxcommand, because it may or may not be used in any given theme. We have no idea what theme you are using or what you may have done to the hotkey definition. You'll have to figure that out yourself, using some of the tips above.