QTR-Quadtone RIP

I'm using QTR with R2880 and it works for me, but I'm on Vista, so I print directly from QTR.  In stand-alone QTR, there is a Media Source drop down box which shows me all paper feeding options that R2880 supports.  

Isn't there Presets drop down when you print from Mac?  Can the paper source be controlled through creating a preset?

Placement does not work properly when feeding paper through rear slot, but instructions that I got from Roger (message ID 8382 Re: QTR & Epson R2880 Placement Problem) describe a workaround.

Igor