I have installed Nmap via brew. Nmap is located at /usr/local/bin/nmap
How can I integrate Nmap in NetScan?
The binary path cannot be selected via "choose folder".
That is the problem: I cannot go to /usr when I select "choose folder". And when I show hidden files, I can browse to /usr/local/bin, but all files there are greyed out. So I cannot select Nmap.
Simply press Shift+Command+G in the Open Folder dialog. This will allow you to enter any custom path, and this works in any Open Folder dialog on macOS.