I'm pretty sure this has been asked before but I was wondering if you might have any intention of adding something like this?
For example - Achieve badge A, Achieve Badge B, Achieve Badge C - Achievement Awarded - All Basic Achievements Achieved.
I'm thinking this might be a very complicated addition, but it would add a lot to the options for when users gain achievements.
I'm really sorry if I'm duplicating a question asked before - I thought I'd seen it but couldn't find it or you answer when I trawled through your support.
Keep up the excellent work!