The State Select parameter determines how relevant variables are used by the engine as states.

Select one of the following five values:

never : Do not use as a state.

avoid : Use as state if it cannot be avoided, but only if the variable appears differentiated and no other potential state with attributed default, prefer, or always can be selected.

default : Use as state if appropriate, but only if the variable appears differentiated.

prefer : Prefer it as a state over those having the default value.

always : Do use as a state.