How can I create this kind of section?

I've attached what I want to do.  Please help if you can.

Thanks.

I think our Configurable List widget can help you with your requirement. Please see the following screenshot that created with this widget.

Also, you can limit the minimum and maximum number of rows that can be added. Please find the demo form below to see if it works for you.

http://www.jotformpro.com/form/42966727520966 

Hope this information helps. Please get back to us if you need further assistance. We will be happy to help.

I am truly impressed with the knowledge and responsiveness of the JotForm support team.  I am going to subscribe!

Great!! It is our pleasure in assisting you and thank you for your comments.

Please do not hesitate to get in touch with us if you have any other questions.

Thank you for using JotForm.