Then I could - not to process code for unwired output. - Only process data for the wired outputs. I mean - If an indicator is not wired to one of outputs - inside the VI anyway is processed whole code and when it reaches the output (if nothing is wired) data is erased? But this processing consumes time and is useless.
I would agree. It seems as if you are trying to do the same kind of optimizations that some compilers do when they see that a variable doesn't get used. I don't know exactly what it is that's inside the box that has you so concerned about consuming time. Be that as it may, you should approach this from a different angle. Think OO. In other words, provide accessor functions for the data so that the user can choose what they need. Thus, you can pretty much assume that if they use it, then you need to calculate it.