Using 1.4 - single page form
Goal : I want to store an external url used to generate for externally hosted screenshot images (shrinktheweb.com). Would like to create a hidden custom post field named screenshot_url that uses the Form Field Data {website} as the value.
Problem:All the other text Post fields allow insertion from Form Field Data but not Custom Field Post. Only allows insertion of Variable values.
Any ideas or work arounds?