ShipStation does many things well. Responding to users on this forum is not one of them.
Users obviously want to be able to print labels on different printers for different carriers and shipping methods. I would add different defaults for different stores, too.
It can't be so hard to implement. And if it is that hard to implement, why not just say so in this forum so we don't have to keep checking back every year to see if anyone from ShipStation updated the response.