For the most part, I really like it.  And, while the best part of it is that you can easily roll dice "manually" if necessary, I'd really like to know how to add 2 dice to a roll (for example, first use of a skill + Flair).  There's a button to add a single die, and options to add 3 or 4 dice (which can be stacked to make 4 or 5 dice).  But I don't see any way to add 2 dice.  Am I missing something?