Help for a newbie?

[paul_cardinale]

You can't have more than one source connected to a wire (it wouldn't make sense).

It seems like you are wanting a boolean OR function.

You can use the Compound Arithmetic function, set it to OR (I think that's the default), then stretch it to have any number of inputs.

[altenbach]

Let's assume this is practice for a hardware course and you have 25 LEDs soldered to a circuit board, or some pre-made 5x5 LED matrix that e.g. takes SPI commands. Now the problem would become much more interesting 😄