"Broadcasting" items in LAB diagrams

Dear all,
We have encountered some situations in which we would like to model some kind of “broadcasts” or almost broadcast functional exchanges.
For instance, a source function which deliver an item to all other functions in a given LAB diagrams (target functions). It may alsop deliver it to a high number of, or even all, functions in the model.
For now we have used the Duplicate function. However, when the number of target functions increase, the modeling effort becomes tedious and the diagrams become unreadable. For this last issue, we use the Hide/Show feature.
Maybe there is a better way to model “broadcasting” ?
Thanks