The bus architecture is configurable, like dLive. This means you can configure your Show file with any combination of up to 42 busses including Aux, Group, Matrix, Main, FX Send and PFL. Stereos count as two busses.
So for example, a Monitor show could be set to use 10 Mono Aux + 10 St Aux + 10 FX Send + PAFL.
A FoH show could be set to use 5 St Aux + 5 St Group + 5 St Matrix + 8 FX Send + Main LR + PAFL.
As for Shure support, this is not planned for V1.0. It will be discussed later.