Hi Luanna,
From what I know you can pass any type of data into a sequence local, but I wouldn't recomand to use them because they "break the data-flow".
A waveform graph is an indicator that lets you see a graphical representation of your data ; these data can have different types (check the example attached too see different possibilities).
If for some reason you at a moment you want to clear the waveform, just feed it with an empty array, if you want to display new data feed it with these new data. I assume the solution of your problem is more about finding the appropriate soft architecture
😉BTW : you can find many example VIs in "Help" >> "find example..." >> "Search"
Hope this helps
We have two ears and one mouth so that we can listen twice as much as we speak.
Epictetus
Antoine Chalons