Turns off stepping for the items in a contents list.
UNSTEP does not throw an error if it is asked to unstep a procedure or variable is not stepped, but doing so has no effect.
TO MYPROGRAM FORWARD 10 RIGHT 90 FORWARD 20 LEFT 90 END MYPROGRAM STEP "MYPROGRAM
Each line of MYPROGRAM is displayed and waits for OK to continue to next line.
UNSTEP "MYPROGRAM MYPROGRAM
|The Step Button|