It is now possible to clone fields in QuintaDB. Just click on 'Clone' link.
In order to copy form field just go to 'Form Builder' menu and find 'Clone' link at the right of each field.
Please, see it below.
June updates. New themes for Portal and Dashboard. New templates for Record Widgets and Tiles
June Updates. New function for Conditional Actions, Record Owners field options and more
How to create multiple records with one form fill