help! VR-Editer
 

I want to build a model in BFC, a rectangle has a little radian .on the top of the rectangle there is a round pipe insert. About one third deep .the round pipe has four holes on its side .each hole has a downwards obliquity.who can tell me whether i can do it in VR-Editer,My geometry is not a rectangle, it has a little radian .can it be made in VR-Editor in Cartesian mode? adding some radian block to make the geometry like my inner in VR-Editor; i do not know this way is correct or not?