How to use DataStore2 - Data Store caching and data loss prevention

Sorry if this was asked already but is this ok to use as a way to reset the players data?

for example reseting the players saves when they reset it ex. pressing a button
but the thing is it would be a combined datastore but i wouldnt want to wipe the whole thing, just the saves.

edit: realized that is very stupid but i still have no idea how to wipe a certain combined key since doing SaveStorage:Set(nil) doesnt work