Profile: a.R

Problem: I would like to create a playlist feature so Users can add a video to an existing playlist or create a new playlist and automatically add the video to that playlist.

Solution:
There's no JavaScript API for Forms, so the best approach in this case is to use one Form and some custom code with the cred_save_data API. In the cred_save_data callback function, create a new playlist post programmatically using the wp_insert_post function. Then use the post relationships API toolset_connect_posts to connect the new playlist and new post.

Relevant Documentation:
https://toolset.com/documentation/programmer-reference/cred-api/#cred_save_data
https://developer.wordpress.org/reference/functions/wp_insert_post/
https://toolset.com/documentation/customizing-sites-using-php/post-relationships-api/#toolset_connect_posts