Hi JB,
Please find my replies below.
1. Thats correct. with the upgarde - the design time artificats are now stored in HCI's local repository. You should be able to edit and modify all aspects of the iflow. look for the edit button at the bottom right of the screen.
2. For C4C --> CRM, the steps are pretty much the same except that you need to use the C4C client certificate in the iflow design time and ensure that the HCI client certificate is imported and mapped to a CRM user (transaction sm30, table VUSEREXTID). Also ensure the HCI root certificates are imported into STRUST SSL Server Standard.
3. not sure why you are facing such an issue but in general the wsdl's are only needed for validation. you have the option of removing the check in the sender channel design time.
4.we dont have any out of the box adapter for HCI DS into C4C but would be good to understand what are the use-cases you are trying out?
Thanks,
Karthik