Real-time calculations

[#1]

Not sure if this is the correct category, but it would be great to see real-time calculated information.

For example, we have a use case where we would like to show the customer their account information on the form so that, if they need to change it, they know what it is without having to dig into the settings. This also allows us to maintain control of what gets changed when in their account settings. Otherwise we have to run audits and that's not ideal.