This article was written for Page Builder Sandwich 5 or earlier. Page Builder Sandwich 6 is a new block builder, so some steps and screens here may differ. Getting started with version 6
pbs_add_builder_wrapper_pre
PBS >= 4.3
PBS adds a wrapper to identify the content area of a post. This is called before the wrapper is placed.
Parameters
$content
String. The post content with the wrapper applied.