vmio or iostat help

Greetings Hobbit Gurus! I am a new user of hobbit, I want to capture iostat and put it on graph for historic data like hobbit has it for memory/cpu, etc. I downloaded bb-iostat from deadcat, but I could not follow the instruction how do I add it, and it will not create graph for you. I am sure one you gurus has done this, would you please help.

Thank you,

-- Shailesh K. Paudyal shailesh.paudyal at gmail.com