Can we preview the whole process and add new approver/FYI user when embed process to VBCS?

Hi all,

I am going to build a VBCS page with process approval function.

May I know that requester can see the whole approval flow before submit?

like user A → user B→ user C →complete

and is it feasible to add more approver/FYI user by requester?

like user A → user X(new added)→user B→ user C →user D(FYI user)complete

Thanks in advance!