Workflow Log in UWL/Portal

Hi All:

we are using ECC 6.0 and setup the UWL in portal 7.0 with ECC 6 , when we finish the connection of UWL and ECC , we could see all work items in portal . but problem comes.

We could see all workflow log though any workitem in this workflow in TCODE SWI1 and SBWP , but I do not know how to check the log in portal ? Is there any package for workflow which could provide the iview for graphic workflow log ?

any suggestion will be helpful

Thank you very much