It is possible to enter more than one command in the same command line. The commands in the line are separated by a semicolon (';'). The specification of the first command is valid for the following command, except for the last leaf before the semicolon. For example:
SENS:FREQ:STAR 1 MHZ;STOP 2MHZ
To start the next command from the highest level of the structure, begin the command using a colon (':'):
SENS:FREQ:STAR 1 MHZ;:CALC:PAR:DEF S21