Dashboards in Eloqua

Hello everyone,

I have a question about the Insight Dashboards in Eloqua, more specifically - The Funnels.

I wonder if there is an option to use more than two Subject Areas in the Funnels?

Here I attached an example:

Each time I try to create a Funnel in Eloqua it is being created from only two Areas (in this example from Total Sends and Total Delivered; Total Opens are totally excluded).

Is there any way to expand the number of Areas being displayed on the funnel (more than two)?

Thank you for your help.