How to make cat walks with wood magic

i want to make cat walks in wood magic only on one segment how do i do that

Highlight the segment, go into Auto-Supports, and click on the "Segment" tab. Check the box on "Individual Settings" and the catwalk boxes for the left and right side. Click on the "Global" tab and uncheck every box in "Global Segment Flag Settings" -this will prevent any other segment from having supports, catwalks, et al.-, check on "Generate Final," and click OK.

[hyyyper]

Go to the Woodmagic setting and turn every off. Only on one segment, tick the box 'catwalks', now generate the supports and you should only have some catwalks and no other supports.