If you want to display featured question on your slider show than you can my plugin http://store.q2amarket.com/store/products/advance-featured-questions/
With this you will be able to display featured question slideshow on any registered places on the Q2A. Including main area, or any page, sidebar widget etc.
If you are looking for slideshow only and want to put own content than this may help you http://store.q2amarket.com/store/products/q2am-jquery-ticker/. But not sure what exactly you are looking in slideshow so please mention your type of content you want to display so can understand your exactl requirement.
If you are looking for something what you can do your own and than here are some steps you need to
-
Register js bundled with slidershow
-
Register css bundel with slideshow
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You may need to modify theme css
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register layer or override in theme file where you want to display
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if you are doing in theme than either you can add static slide or make function to add dynamically content as you want.
EDIT:
To override qa_main() function
function main()
{
if(qa_request() == '')
//your slider code here
qa_html_theme_base::main();
}
OR
function main()
{
if($this->template == 'qa')
//your slider code here
qa_html_theme_base::main();
}