How to update a password

I am having the same problem. I am trying to transition from Last Pass but finding things like updating a password that were simple in Lastpass laborious in 1Password. I made a typo in the password.  I want to go into the vault and edit the password spelling.  Find no way to do that.  I eventually did it by going back to the website I was trying to log in to, but when I made the change it did not ask me to update 1Password.  Maybe I'm doing something wrong.