I thought that when I added a board to watch board, it was automatically added to the watchlist. Isn't this what happens?
When you visit the watch board,you get this info:
However,you don't need necessarily need to watch a board for adding topics in your watchlist.
When you visit a thread,you can watch that thread by adding it to your watchlist by clicking the watch button on the top right corner of the page:
![img loading](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2FpkltpK4.png&t=663&c=oLzvh7WwGHp7Zg)
Or when you reply,you can explore the additional options below your text editor and check the watch topic option on/off:
![img loading](https://ip.bitcointalk.org/?u=https%3A%2F%2Fi.imgur.com%2F60l7CsR.png&t=663&c=i33pBl-yCqlJkQ)