Extract data from SAP ERP functions.

Good day everyone,

How to use the remote SAP functions that returns tables , I'm able to add them as objects but does not allow me to use them in neither dataflow or abapdataflow.  Although I'm able to use these functions directly from the Information Design Tool.

Any idea how to use them in DS.    DS version is 14.2.3.549 and ERP version is ECC 6.

Thanks in advance.