code: protected boolean isColumnVisible(int colFlag) {
  
          Integer key = new Integer(colFlag);
          if (m_colVisibilities.containsKey(key)) {
              return m_colVisibilities.get(key).booleanValue();
          }
          return false;
      }
docs: Returns the visibility flag for a given column.<p>
  
  The default behavior is to show the same columns as the explorer view,
  but this can be overwritten.<p>
  
  @param colFlag some {@link CmsUserSettings#FILELIST_TITLE} like value
  identifying the column to get the visibility flag for
  
  @return the visibility flag for the given column