| START_STEP_IN | |
| START_STEP_IN 0 | |
| Step when the electric field starts to be applied | |
| This optional keyword expects an integer. Default value: 0 | |
| END_STEP_IN | |
| END_STEP_IN 2 | |
| Step when the field reaches the full strength | |
| This optional keyword expects an integer. Default value: -1 | |
| START_STEP_OUT | |
| START_STEP 0 | |
| Step when the field starts to vanish | |
| This optional keyword expects an integer. Default value: 0 | |
| END_STEP_OUT | |
| END_TIME 2 | |
| Step when the field disappears | |
| This optional keyword expects an integer. Default value: -1 |