HR Process and Forms with Webdynpro application

Hi experts,

I have a requirement to create a MSS process for managers to start leave request for employees with HR Processes and Forms using the Webdynpro application for leave request: HRESS_A_PTARQ_LEAVREQ_APPL. Is this possible? Can you replace the form with a WD application? I did the basic configuration with the scenarios and process but get stuck with the form as there is no form and I need to find a way to use the WD application where the form is to start the process. Any input is appreciated.

Thanks

Chi