[tasks]
tasknum=3
[tasks/task0]
type=calculate
time_mode=TM_ALL_PRE_LAST_BOTH
vol_a=1
vol_b=0
operator=subtract
[tasks/task1]
type=save_volume
time_mode=TM_ALL_PRE_LAST_BOTH
source=calculator
format=0
mask=0
compress=1
delete=1
savepath=
[tasks/task2]
type=disable_script
time_mode=TM_LAST_POST