private @Nls @NotNull String appendGroupName(@NotNull @Nls String prefix, @NotNull ActionGroup group, @NotNull Presentation presentation) {
      if (group.isPopup() || myShowNonPopupGroups) {
        String groupName = getActionGroupName(presentation);
        if (!StringUtil.isEmptyOrSpaces(groupName)) {
          return prefix.isEmpty()
                 ? groupName
                 : prefix + " | " + groupName;
        }
      }
      return prefix;
    }
private @Nls @NotNull String appendGroupName(@NotNull @Nls String prefix, @NotNull ActionGroup group, @NotNull Presentation presentation)