How to show a stacked area line chart

Hi there, I currently have a graph with 1 X-Axis value. The field is called SignupDate.

Right now I apply a filter onto the graph to show customers who are VIPs signed up.

I’m looking to enhance this by showing all sign ups vs vip sign ups.

Orange lines would be VIP sign ups, which is always a subset of total signups.

My current data is structured as followed.

Customer SignupDate IsVip
John 2023/08/16 true
Jeff 2023/08/16 false

HI @boss,
you are looking for something like

What issues are you dealing with right now?