Problem: How to set post author using CRED form dynamically
Solution: You can use CRED hook cred_save_data hook to set the post author dynamically.
You can find proposed solution, in this case, with the following reply: => https://toolset.com/forums/topic/is-it-possible-to-set-a-default-user-author-when-someone-submits-a-content-form/#post-624191
Relevant Documentation: => https://toolset.com/documentation/programmer-reference/cred-api/#cred_save_data
This is the technical support forum for Toolset - a suite of plugins for developing WordPress sites without writing PHP.
Everyone can read this forum, but only Toolset clients can post in it. Toolset support works 6 days per week, 19 hours per day.