Hi everyone! This is only a wish: it would be wonderful if something like a "search through current window menu" would be added to krunner. I think this can really improve UX (much more than 5.9 global menu). There is a project aiming the same for gtk: https://github.com/p-e-w/plotinus. As menus are already exported to external resources (eg global menu applet), i don't think it is too hard to implement something like this (but i may be wrong). Thanks for your work!
This is definitely on the agenda, however, once the menu is exported Qt hides it from the application so you wouldn't be able to use just the KRunner plugin without using a global menu as then the menu would be inaccessible. This needs to be investigated more.
Well, we can always fallback to "menu button in titlebar" that does not adds any vertical space and it is quite hidden), if that's the case. By the way it would really be a nice improvement!