[Suggestion] Add 'Keep above' and 'Shade' buttons in 'Window Decorations' to the left side of titlebar (right after 'Menu' button)

[notuxius]

Sometimes i need to keep one window above others (for example media player with video) - if 'Keep above' button will be in titlebar - i can keep it above or back to same as others in one click. Buttons do not take up much space - considering titlebar almost always has a lot of free space