+$extra_columns[]=array('tagname'=>'arch', 'header'=>'A', 'source'=>'myplc', 'type'=>'string', 'title'=>'Architecture', 'fetched'=>false);
+if (plc_is_admin()) {
+$extra_columns[]=array('tagname'=>'deployment', 'header'=>'DL', 'source'=>'myplc', 'type'=>'string', 'title'=>'Deployment', 'fetched'=>false);
+}
+
+//CoMon Live data
+$extra_columns[]=array('tagname'=>'bwlimit', 'header'=>'BW', 'source'=>'comon', 'type'=>'sortAlphaNumericTop', 'title'=>'Bandwidth limit', 'fetched'=>false);
+$extra_columns[]=array('tagname'=>'numcores', 'header'=>'CC', 'source'=>'comon', 'type'=>'sortAlphaNumericTop', 'title'=>'Number of CPU Cores', 'fetched'=>false);
+$extra_columns[]=array('tagname'=>'cpuspeed', 'header'=>'CR', 'source'=>'comon', 'type'=>'sortAlphaNumericTop', 'title'=>'CPU clock rate', 'fetched'=>false);
+$extra_columns[]=array('tagname'=>'disksize', 'header'=>'DS', 'source'=>'comon', 'type'=>'sortAlphaNumericTop', 'title'=>'Disk size', 'fetched'=>false);
+$extra_columns[]=array('tagname'=>'gbfree', 'header'=>'DF', 'source'=>'comon', 'type'=>'sortAlphaNumericTop', 'title'=>'Currently available disk space', 'fetched'=>false);
+$extra_columns[]=array('tagname'=>'memsize', 'header'=>'MS', 'source'=>'comon', 'type'=>'sortAlphaNumericTop', 'title'=>'Memory size', 'fetched'=>false);
+$extra_columns[]=array('tagname'=>'numslices', 'header'=>'SM', 'source'=>'comon', 'type'=>'sortAlphaNumericTop', 'title'=>'Number of slices in memory', 'fetched'=>false);
+$extra_columns[]=array('tagname'=>'uptime', 'header'=>'UT', 'source'=>'comon', 'type'=>'sortAlphaNumericTop', 'title'=>'Continuous uptime until now', 'fetched'=>false);
+
+//TopHat Live data
+//$extra_columns[]=array('tagname'=>'hopcount', 'header'=>'HC', 'source'=>'tophat', 'type'=>'sortAlphaNumericTop', 'title'=>'Hop count from reference node', 'fetched'=>false);