Compositing CGI with Bigger Node Trees - Nuke 101: Professional Compositing and Visual Effects - page 118

12. Connect the newly created Dot's input to the previous Dot.
13. Drag the Dot to the right to create some space ( FIGURE 3.28 ) .
Figure 3.28. Keeping a node organized with Dots.
14. Hold down Ctrl/Cmd and drag the yellow Dot in the middle of the pipe between
the two Dots to create a third Dot. Drag it to the right and up so it forms a right
angle between the two Dots ( FIGURE 3.29 ) .
Figure 3.29. It's easy to snap elements to right angles in the DAG.