[Qgis-user] v.to.db problem

[ambijat]

Hi! all,
I had to create two columns in attribute table for x,y coordinates. But, 
v.to.db in qgis has a problem in identifying more than one column from 
the drop down box. Because that dd box allows you to select only one box 
at a time neither you can type it in after that. So, either I go to 
grass for typing is possible in grass.
Any solutions to this. It is irritating

regards,
Ambrish