qnod

   'qnod' RETURN 'w'|'p'|'m'|'u'
This keyword is used to move nodes (see also node). To move a node move the mouse pointer to the desired node and press ”p” (pick) then go to the desired position and press ”m” (move). See qali or the section Orientation how to rotate the model into a certain position. Press ”q” to quit the command or ”u” to undo the last action.

It is also possible to measure distances between two pixels on the screen. Just press the key ”w” on the positions of the two pixels. The distance is calculated in the scale of the displayed geometry.