I *think* a backslash at the end of a line will contain the next line in the command..
like
Code:
Serin COMA\COMB, INBAUD, [oi_swA,oi_swB,rc_swA,rc_swB, \
p2_x,p1_x,p4_x,p3_x,PB_mode, \
packet_num,p2_y,p1_y,p4_y,p3_y, \
p2_wheel,p1_wheel,p4_wheel,p3_wheel]