You can ONLY add your name to the Critique Train Google Doc on the day of the New Draft Challenge & Critique Train. Make sure you write a new PB draft during the challenge first. The Google Doc will be open 24 hours EST.
If the contest is live and you can’t add your name, look for a small pencil (probably toward the top). That should allow you to edit. If you’re on your phone, you might need to upload the free Google doc app.
If you still have trouble, message me and I’ll add you.