CPT Compatability

Hi

We are having trouble using the plugin with CPTs, we tried it with toolset, WCK and CPT UI. Custom Post Type UI (CPT UI) has a place to add a support type slug that will allow third-party plugins like User Specific Content to register its meta box. Here is the link:

https://docs.pluginize.com/article/28-third-party-support-upon-registration
COULD YOU PLEASE GET THIS WORKING. Your page says it supports custom types but it is not at this time.

Thank you
Cristina Lisa