How to manipulate windows after window maximised in Mac OS X

Running on Mac OS X 10.11.6 - if I maximise a window, it loses the title bar with red, orange and green window buttons. Only way I have found so far to resize window is to save, close and reopen. Is there another work round? Does this only occur on Mac OSX?

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When LibO is “maximised” in OSX – e.g., after clicking the “green” dot in the upper-left of the screen…


… these “buttons” disappear.

To access them, all you need to do is “bump” the top edge of the screen and in a few milliseconds, the menubar will glide down, giving you full access to the bar, and these buttons.

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