We have a great news: from version 3.6.7 the WS-PGRADE/gUSE system supports the well-known XSEDE grid resource. From now you can easily submit jobs to XSEDE resource too.
Another important change in the new gUSE release is the direct integration of Data Avenue tool into the job configuration of WS-PGRADE/gUSE. Thus, you can conveniently use the capabilities of Data Avenue for remote job input and output definitions. (Note: The use of the Data Avenue-based job I/O function is currently guaranteed for the application of three storage protocols (SFTP, GSIFTP, and S3) and for four middleware types (local, gLite, CloudBroker, and EC2).
More details about XSEDE-support: in Portal User Manual (chapter 24 of Menu-Oriented Online Help) and in DCI Bridge Manual (section 5.21)).
More details about Data Avenue: in section 21.2 of Menu-Oriented Online Help in Portal User Manual.