That is, unfortunately, much more complex than we are likely to be able to support. We might be able to do something like quartering, or having a couple of charges separated by a...does one call that a bend, or something? Sorry, my heraldic is pretty weak.
But that's got six charges on it, and four of them are inside the stripe...definitely advanced stuff when you have to program it in generically.
Yea, my heraldry terminology sucks too. And I'd understand if it proves too complex.