How do I add a drop down selection for more specific options once they select something?

For example:

Ribbon color choices:

red

black

green

yellow

and once they pick a color, then a drop down comes up with yardage amount and quantity.

I'd also like to be able to put in the amount and have it calculate as they make selections.

Hi,

For this setup, you would want to use the show/hide form field condition:

https://www.jotform.com/help/57-Smart-Forms-Using-Conditional-Logic

Create a checkbox field for each one of your options, then two text boxes to be shown when the option is checked:

Setup the show/hide condition to show the text boxes:

Then setup a calculation widget in your form to calculate the total:

http://www.jotform.com/help/259-How-to-perform-calculation-in-the-form

I wasn't sure how you wanted the yardage factored in the to equation, so I left it out for now:

All that equation does is add up the quantities for each product, then multiply the total quantity by $6.50.  It looks like all your products are $6.50 which is why I set it up that way.  This calculation can be altered to include the yardage or anything else you might like.

You can then forward that total to a payment field:

http://www.jotform.com/help/275-How-to-pass-a-calculation-to-a-payment-field

Here is my quick test form to show you how it works:

http://form.jotformpro.com/form/52584931260961

You can clone it to see if the full setup if you'd like:

https://www.jotform.com/help/42-How-to-Clone-an-Existing-Form-from-a-URL

If you need any help getting this setup to your liking, let us know and we will be happy to assist you.