I was wondering if and when Adobe might add in functions for calculating fields and using drop downs to select how fields react.
I would like to have a form that customers could put in what brand they want to buy and then sizes and quantities to purchase.
Then they could buy via Pay Pal.
Sorry we do not support calculations on the form (only in the response table) and I don't know when this feature will become available.
You might be able to use to show/hide logic to change the form depending on a drop down selection. Instruction on how to do that can be found here : http://help.adobe.com/en_US/formscentral/using/WSd789abd336388b1642c7fce012da94afe4f-8000. html#WS0faeceb8c23f5d60-774f03e3131ddc76d7d-8000
We also have a PayPal integration. More info on that here : http://forums.adobe.com/docs/DOC-1632