Greeting craftscript enthusiasts.
I have created a craftscript (tunnel.js) that makes a tunnel in Minecraft / WorldEdit.
If you would like to access / use it (freely of course), the script and instructions are located at bmcbeth.com/tunnel
Edit 10/06/2018: I uploaded a short (3.5 minutes) video to YouTube if interested;
Please let me know if you like it or want to suggest improvements.
Please read my (short) instructions prior to contacting me.
(hmmm ... - attached image / screenshot is appearing in the editor but not in the post... - can be found at bmcbeth.com/tunnel/images/tunnel2.jpg)