*--config* CONFIG::
Set the path, where to store the config.
+ Make sure you have full read/write access to the given directory.
(Default: $HOME/.config/signal)
*-u* USERNAME, *--username* USERNAME::
*-g* GROUP, *--group* GROUP::
Specify the recipient group ID in base64 encoding.
+listGroups
+~~~~~~~~~~~
+Show a list of known groups.
+
+*-d*, *--detailed*::
+ Include the list of members of each group.
listIdentities
~~~~~~~~~~~~~~