CRED plugin allows you to build forms that create child posts and set parents for these posts, supporting the parent-child relationship functionality from Types plugin.
When you ask for help or report issues, make sure to tell us the structure of your content and the relationship between the content types.
Problem: I have a View of repeatable field groups (RFGs) and I want to add a link to edit any row.
Solution: Place your Edit RFG Form in an unassigned Content Template (or Template Layout). In the View's Loop, use the Toolset Forms button to insert an Edit Post Link. Choose the Content Template or Template Layout you just created.
Problem: I am trying to use the Forms API, but I'm having trouble getting the value of a custom field and the selected post parent.
Solution: Use the 'wpcf-' prefix to access the value of a Types custom field in the Form, and use the parent field name to access the ID of the parent post.