Custom unit/Multiple sample players/ Same Sample-question

I’m still fairly new to custom units so please bear with the question. I tried searching but couldn’t find exactly what I was looking for. Let’s Say I have built a custom unit with N separate sample players. After the unit is loaded, if I want to change the sample is there a way to load it at the highest level so that all the units using the old sample now are updated to the new selection? I’m sure i’m missing something obvious…

Have a look at this thread: