Here's my WH Script setting up the boatswitch per default parameters for the M2000C (with one change for AG guns). Enusure you have a key mapped for IO functions.
//BOATSWITCH//
MapKey(&Throttle, BSF, PULSE+L_CTL+'1'); //Magic
MapKeyIO(&Throttle, BSM, PULSE+L_CTL+'0', PULSE+'c'); //AG Guns - AA Guns/NAV
MapKey(&Throttle, BSB, PULSE+L_CTL+'2'); //Super 550/PCA Select/