Customize a point in real time

Hello. I’ve just installed your charts plugin, and I’ve successfully integrated it into a Gravity Forms form, which is fantastic. I’d like to be able to add a point to the chart based on form data (in real-time). Is it possible to use a hook or a function to highlight a point on an existing chart? I’m not a premium customer yet, but if you tell me this is doable, I’ll certainly sign up. Thank you very much for any insights you can provide.