Once a form is initially created how do you add a field, or add validations ...

I thought I'd jump in and duplicate a form that I had previously done using Spry validations in DW. I used a clean page and created just the form in form builder, but afterwards realized I forgot a few fields like repeat email address and repeat password. Using Spry, you can ensure the two fields match through validation (email plus repeat email matches, etc.).

a) can validations be done similar to what is done using Spry?

b) how do you add validations to existing form fields that have been created previously using Form Builder or Security Assist?

c) how do you use Form Builder with a form that was created using Security Assist to add a CAPTCHA field?

The only way I've seen using an existing form was to click in the form and then use Insert->Form Builder which tries to insert a new form using a wizard. I don't want to insert a new form, I just want to modify what's already there.

thanks,

steve