Greetings.

Currently We can export menu to the window decoration button. Nice option. But this yields amazing potential that was not used up to now.

First of, technology has changed, and use cases changed as well, but milions of users world wide are pressing ctrl+f right now to search the content of the web pages ─ just like greping manuals 20 years before. Why? Because it is fast, simple and effective approach. Global menu action searching should be equally efficient, as people in the canonical think. No, it will be more efficient, just look at this:

1) let's use globbing like behavior. Instead of typing save, simply type f/s (file/save) to show proper action. Type f/ to get all file actions in the browsable form.
2) let's allow chained actions. Right now, to use block selection in the kate you need to leave the vim mode and enter the block selection mode. Why? Why not simply type "e/v, e/b" that would be globbed to the edit→vim mode, edit→block selection mode and activate after each other?
3) let's allow typing custom, vim like actions. If we have interface like this, why not allow to implement parser that could read strings starting with ":" in application? Why not allow integrating this well recognized, and extreamly effective workflow concept into KDE?
4) Put everything together. Simple dropdown menu, like seen today is just not enough. We need something that would fit into new workflow. Personally I would copy the look and feel of http://kde-apps.org/content/show.php?content=146098 this menu, maybe wiht influence of old gnome mega menu concept: https://lh5.googleusercontent.com/_1QSD ... eo/mockups menu-experiments eog-menu-experiments.png For the traditional menubar, just a line edit on the top right would be clearly enough.
5) Clearly, We would need a global shortcut to access this menu. Using mouse in order to go into keyboard driven interaction is just inefficient.

This way we can turn KDE into even more powerfull DE. Something that would be work horse of all around the world and main reason to adpot linux.