I'm sending an argument from the coordinator to the tpe program (Call xxx(R[x]).
In the 'sub' tpe programs I check this argument against a value, given from the coordinator task.
If it is ok, then I jump to the 'execution part' of the subprogram.
If not I give an error message on screen and ask for selecting the right program.
So I can prevent my tpe- programs from beeing selected and executed without the right information....