[Freesurfer] tkmedit question

Aloha FreeSurfers,

I have a small question regarding tkmedit and the line tool. Is it possible to specify start and end point for a line on the tcl prompt? My goal is to create a line in a volume that is not parallel to one of the main axes. ATM I resort to turning the volume in question into a plane parallel to the line, but my overlays are not rotated accordingly so that is not as comfortable as I want it to be, and since it is somewhat exploratory pre-rotating volume and overlay is a bit unwieldy ;). For completeness, I am using 3.0.5 centos4-x86_64 under suse linux 10.1, but I guess that does not really matter.

ahoi & thanks for supplying these nice & powerful tools Sebastian