Restrict Content Pro Integration

Hi,
I was trying to manage multiple-registration forms through RCP plugin for a different type of user, but, I couldn’t make it as there is no such functionality in RCP. therefore, I’ve tried to use an Ultimate Member plugin to fulfill the required functionality. But, I am not sure how to integrate it with RCP as there is no detailed step by step tutorial by RCP or UM too, even though both suggest using each other for further functionalities.

the problem is, when I create different registration forms by Ultimate Member, I am not able to integrate RCP’s payment gateways or terms & conditions to show up in UM created registration forms. If I use UM’s shortcodes in each different pricing plan, nothing connected to RCP, and If I use RCP’s shortcodes, it will use RCPs registration form, which is not fit in my request.

I will appreciate it if someone shares the detailed step by step integration of these two plugins. thank you.