Combining 2 Line Graphs that has the same x-axis and y-axis timestamp

I was trying to consolidate two different line graphs that shows the count of response error 400 and response error 404. I was able to graph them separately with no problem. How would I combine the graphs so it shows both 400 and 404 response in the same graph with color coded line. If not possible to do with a line graph, which kinds of graph representation should I use instead?

You can do this by splitting the series using the filters aggregation: