Adds a new template tag to output user controlled dynamic tabs and drop down menus for posts, pages, categories, archives, and bookmarks.
Yep this can be achieved with css, have a play.
Yes and No. You can use
dtab_list_tabs as many times as you want (setting "tabbar=class" as a parameter to ensure valid css) to procude several copies of the same set of tabs, but currently you can only set up and administer that single set of tabs. Multiple tab sets is a feature I am considering adding in future versions.