#1 Parameter hierarchy in external action

[Loïs Vanhée]

When one tries to perform an external action with different parameters, different functions are called in the environment.
E.g. goto(library,0), goto(0,0) triggers 2 different functions in the environment, instantiated by goto(APLIdent,APLNum) and goto(APLNum,APLNum)

Often it is more convenient to have goto(Term,APLNum) as an external action, capturing both requests. Is it possible to extend 2APL in that way ?