The first option you have already. When you decide on a set of parameters for your particular cabinet design and build style, save you defaults to a file, with a name you recognize. Be sure that the Base Cabinets tab, section Base General, has Carcass Gap (Back to Wall): set to 0″ and Upper Cabinets tab, section Upper General, has Carcass Gap (Back to Wall): set to 1/4″. You may also want to change the Carcass Gap (Back to Wall): parameter for Refrigerator Upper and Diagonal Corner Upper as well.
Your second request is coming in CabWriter 3.0. You may have to wait until next summer to use it, unless you want to be a beta tester for 3.0, in which case it may be available around February.