STET
The STET function is used to cancel the effect of a following rule. For example, if you have a rule written in this form:
['Revenue'] = [Units] * [Price]
If you want Revenue to remain manually editable for Germany, you can deactivate the rule for Germany by writing an additional rule that must be in front of the rule which is to be partially deactivated:
['Revenue', 'Germany'] = STET