2. :verb :map <mapping> tells you where in your config a mapping was set. :verb :set <option> tells you where an option was set
3. Don't provide a pattern to :s style cmds (:s//foo) and the most recently used pattern is applied
2. :verb :map <mapping> tells you where in your config a mapping was set. :verb :set <option> tells you where an option was set
3. Don't provide a pattern to :s style cmds (:s//foo) and the most recently used pattern is applied