As for your second question: also it it possible to have more then one open/close button on the bar (ex. top, middle, bottom). - I have never been asked such a question. Most probably it is possible, but it requires to change the HTML rendering and to add two more containers wrapping the arrows. This could be layout breaking and could seriously mess the CSS rules, so I would not recommend it. Also it is a custom solution and it is out of the scope of our support, so it is a developers decision and repsonibility to apply it and maintain it in order the control to work properly.
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