I'm pretty sure this is a known issue that we've looked at fixing and discarded, unfortunately. I don't remember the exact reasoning, but it's something to do with the way dynamic properties (such as template parameters), particularly their values, don't really exist unless the window/template is open in memory. So if "all windows" truly did a deep search of all windows, it would suddenly attempt to open every single window and template in your project, which very quickly becomes impossible on real, production systems.