It’s hard to pull out a small reproducible example bc it’s a complex front end with object names that have some proprietary references.
Basically it’s just like you example here:
except, instead of filtering down in update_graph, we would add a record to the df based on a input box entry, for example. And they can keep adding records to the df by doing this repeatedly (entering items into input box repeatedly)
So you can see the only input to your example’s intermediate callback is the drop down, but I need to also have an input to intermediate callback be an updated dataframe unique to that session with all the new records that were previously added.