How to add accordion, vertical tabs, ...

Accordion / vertical tabs in 7.x-2.x version will only be for internal sigmaone core & plugin uses only for things such as formatting a node / field is not supported.

Basically you will need to format the element that you want to be an accordion / vertical tabs then call in jQueryUI javascript and bind the element, it will format the element to be an accordion / vertical tabs.

Most likely you will need to do php coding in node.tpl.php or preprocess_node function.

Or you can try to find modules that perform those thing for you, I only know paid version of vt_superslider module which can handle those thing but maybe there is a free alternative out there?.