anchor.diff:                  id = <<"s3_timeout">>,
                   style = <<"width: 30em; display: block">>,
                   placeholder = <<"Timeout [ms] (optional)">>
  +            },
  +            #flatui_checkbox{
  +                label_id = <<"s3_sig_v2_checkbox">>,
  +                label_style = <<"width: 20px;">>,
  +                label_class = <<"checkbox">>,
  +                delegate = ?MODULE,
  +                postback = sig_v2_toggled,
  +                body = <<"Signature version 2">>
               },
               #flatui_checkbox{
                   label_id = <<"s3_readonly_checkbox">>,
  
positive.code:     end, [
          <<"ceph_readonly_checkbox">>,
          <<"posix_readonly_checkbox">>,
          <<"s3_readonly_checkbox">>,
          <<"swift_readonly_checkbox">>,
          <<"ceph_insecure_checkbox">>,
  
negative.code:                 State;
  
              {swift_submit, StorageName, Username, Password, AuthUrl, ContainerName, TenantName, BlockSize, Timeout} ->
                  OptArgs = prepare_opt_args([
                      {blockSize, BlockSize},
                      {timeout, Timeout}
                  ], []),
                  Insecure = maps:get(insecure, State, false),
                  Readonly = maps:get(readonly, State, false),
                  case onepanel_gui_logic:add_storage([{StorageName, [{type, <<"swift">>}, {username, Username},
  