Append data to an existing dataset

Is there a way to redirect the output of multiple runs of the same scraper to the same existing dataset, appending the new records? The order doesn't matter. Due to the limitations of the scraper I am using, I need to perform thousands of runs that produce a very small amount of output that I would like to add to an existing dataset (obviously having the same format or schema). I skim through the Apify API documentation and I did not find anything about it.