Adding custom UIBB's into Standard WDA FPM application

Dear Expert's,

I am working on enhancing an Standard WDA FPM component EAMS_WDC_JOB which has some custom configurations.

My requirement is to add two custom UIBB's in the popup screen and I am not sure, how to pass data from standard application to custom UIBB's feeder class.

I am new to FPM and it will be helpful, if someone can guide me on how to pass data between Standard and Custom UIBB's. Is it possible to add a standard configuration of an UIBB (Form) and get the data passed ? Also, i have functionality to save back the data.

Thanks and Regards,

Gaurav.