Gray connections

hi again, sorry to ask many questions, but i was really in need of
a gray connection between nodes (my patches are getting complicated)
instead of a dark black one
i’ve seen this option in the users’patches, but haven’t found info in the doc (or i missed it)

select nodes or connections and press CTRL + H to make them hide in secure mode (CTRL-E) , as result they appear grey in unsecure mode

thanks angel