For example:
$ timew config verbose yes
$ timew config verbose ''
$ timew config verbose
The first command sets 'verbose' to 'yes'. The second sets it to a blank value which overrides the
default value. The third example deletes the 'verbose' setting.
When modifying configuration in this way, interactive confirmation will be sought. To override this
confirmation, use the ':yes' hint, which means you intend to answer 'yes' to the confirmation questions:
$ timew config verbose '' :yes
If no arguments are provided, all configuration settings are shown:
$ timew config
verbose = yes
...