@Override
            protected void showInfo(final TaskProgress row, final PopupPosition popupPosition) {
                final SafeHtml tooltipHtml = buildTooltipHtml(row);
                tooltipPresenter.show(tooltipHtml, popupPosition);
            }
Add the columns to the table.
stroom-core-client/src/main/java/stroom/task/client/presenter/TaskManagerListPresenter.java