Exists the possibility to nest different expressions in order to facilitate the maintenance ?

Summary:

The customer need to nest an expression in OIC due to long incentive formulas .

The customer want to create an expression and call this expression into another expression

Content (required):

The customer need to nest an expression in OIC due to long incentive formulas .

The customer is facing issues due to creation of very long formulas.

The customer want to create an expression, for example expression F1 ,

and call this expression F1 into another expression F2

Example:

F1 = CHOICE(OR(IS_EQUAL(status, 'A'),S_EQUAL(status, 'A_NA')); MAG1;Comp Plan. Target)

F2 = CHOICE(IS_EQUAL(F1, Comp Plan. Target), SUM(Credit.Credit Amount)*RTR - Plan Component.MAG/12/Comp Plan.Cadenza, NOT(IS_EQUAL(F1, Comp Plan. Target)), Plan Component.MAG - SUM(Credit.Credit Amount)*RTR)