can i draw a line to separate fields?

Yes you can and you have 2 options to choose from:

1. Use a TEXT FIELD that will contain the line you want to add. You will use the <hr> tag to achieve that.

2. Or you can use a widget:

   a. Basic Separator: https://widgets.jotform.com/widget/separator

   b. Form Separators: https://widgets.jotform.com/widget/form_separators

Here's a guide on How-to-Add-a-Widget-to-your-Form 

Hope this answered your question.