Levels of the identifiers as simple integers. Defines the order of calculation, enforced by the following rule -
all lower level identifiers should be already calculated before the calculation of the identifier with the higher level starts.
Because of this, the lower level identifiers can not depend on higher level identifiers.
This rule means that effects from all identifiers of the lower levels will be already processed, when calculating
an identifier of the higher level.
Normally you don't need to specify a level for your identifiers.
Levels of the identifiers as simple integers. Defines the order of calculation, enforced by the following rule - all lower level identifiers should be already calculated before the calculation of the identifier with the higher level starts.
Because of this, the lower level identifiers can not depend on higher level identifiers.
This rule means that effects from all identifiers of the lower levels will be already processed, when calculating an identifier of the higher level.
Normally you don't need to specify a level for your identifiers.