it's a possibility, that each time, a persons mouse hovers (sp?) over a link to a group (onmouseover or something , while playing a problem, that is) a little graphical menu, just at the corner of the link would be dispalyed, having, ",>>" options -
> - directly jump into the end of the group (last problem, in it)
- next problem in this group
I - just switches into the group - staying in the same problem - only now the "prev/next in set" will be availible for the group
B is an option - could be just by clicking on the link, it self - or by clicking on it, to browse the group - just like it is now..
{Posted by santa c}