How to change the orientation of gvisOrgChart in R?

I built a giant org diagram in R using gvisOrgchart. My data matters and parents.

When I run the following script:

Org1 <- plot(gvisOrgChart(data, idvar = "value", parentvar = "parent",
    tipvar="rand",  options=list(width=100,       height=100,allowCollapse=TRUE)))

I get a huge horizontal chart. My question is below:

• How to change the horizontal orientation?
• Is there any other way besides using googleVis to create org charts in R?
• How to change the distance between fields and text size?

Thanks in advance!