How to unlock the space.

The above is the first step. Select one to modify the display permissions. There are more options in the lower right corner. Click Edit.

The second step, when editing, you don't need to change the content, and if you change it, you won't update it in your own and friends' space, because the time for talking has passed. Then choose everyone's options (except this option, others are still with small locks, and you can see them selectively), and finally click Publish. It's done.

By the way, of course, when the lock disappears, everyone who can enter the space can see this article. This situation can only be set in the permission to enter the space. No one will use this function to let others into their own space without letting others talk about it without locking it.