I took the ui-table example and modified it with "headerVisible": false
and I get this:
I added your change node with mine (set to true) and I can switch the header on/off with the inject nodes
And I updated to the latest version of the dashboard and ui-table (Node-RED 1.0.3) just to be shure.
[{"id":"47813b5f.afda84","type":"inject","z":"ab797823.3396a8","name":"","topic":"","payload":"[{\"name\":\"MEQ0451495\",\"room\":\"Bathroom\",\"SET_TEMPERATURE-value\":22,\"ACTUAL_TEMPERATURE-value\":21.8,\"VALVE_STATE-value\":90,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":true,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ1875547\",\"room\":\"Living Room\",\"SET_TEMPERATURE-value\":12,\"ACTUAL_TEMPERATURE-value\":16.2,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":1},{\"name\":\"MEQ1875538\",\"room\":\"Living Room\",\"SET_TEMPERATURE-value\":18,\"ACTUAL_TEMPERATURE-value\":19.5,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.6,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":2},{\"name\":\"MEQ0447462\",\"room\":\"Kitchen\",\"SET_TEMPERATURE-value\":17,\"ACTUAL_TEMPERATURE-value\":22.2,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":10,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":3},{\"name\":\"MEQ1875551\",\"room\":\"Office\",\"SET_TEMPERATURE-value\":18,\"ACTUAL_TEMPERATURE-value\":20.2,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ0447425\",\"room\":\"Dining Room\",\"SET_TEMPERATURE-value\":19,\"ACTUAL_TEMPERATURE-value\":20.4,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ1875546\",\"room\":\"Dining Room\",\"SET_TEMPERATURE-value\":20,\"ACTUAL_TEMPERATURE-value\":18.8,\"VALVE_STATE-value\":99,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ0447483\",\"room\":\"Bedroom\",\"SET_TEMPERATURE-value\":17,\"ACTUAL_TEMPERATURE-value\":22.4,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ1875541\",\"room\":\"Child\",\"SET_TEMPERATURE-value\":18,\"ACTUAL_TEMPERATURE-value\":20.4,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ1875552\",\"room\":\"Guest Room\",\"SET_TEMPERATURE-value\":20,\"ACTUAL_TEMPERATURE-value\":21.1,\"VALVE_STATE-value\":9,\"BATTERY_STATE-value\":2.8,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0}]","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":509,"y":306,"wires":[["15f66c3e.67e504"]]},{"id":"15f66c3e.67e504","type":"change","z":"ab797823.3396a8","name":"ui_control","rules":[{"t":"set","p":"ui_control","pt":"msg","to":"{\"tabulator\":{\"headerVisible\":true,\"columnResized\":\"function(column){ var newColumn = { field: column._column.field, visible: column._column.visible, width: column._column.width, widthFixed: column._column.widthFixed, widthStyled: column._column.widthStyled }; this.send({topic:this.config.topic,ui_control:{callback:'columnResized',columnWidths:newColumn}}); }\",\"columnMoved\":\"function(column, columns){ var newColumns=[]; columns.forEach(function (column) { newColumns.push({'field': column._column.field}); }); this.send({topic:this.config.topic,ui_control:{callback:'columnMoved',columns:newColumns}}); }\",\"groupHeader\":\"function (value, count, data, group) {return value + \\\"<span style='color:#d00; margin-left:10px;'>(\\\" + count + \\\" Termostat\\\"+((count>1) ? \\\"e\\\" : \\\"\\\") + \\\")</span>\\\";}\",\"columns\":[{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"ROom\",\"field\":\"room\",\"width\":100,\"frozen\":true},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Device\",\"field\":\"name\",\"width\":100,\"align\":\"center\"},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Type\",\"field\":\"deviceType\",\"width\":100,\"align\":\"center\"},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Measurements\",\"columns\":[{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"target\",\"field\":\"SET_TEMPERATURE-value\",\"formatter\":\"function(cell, formatterParams, onRendered){return cell.getValue()+'°C';}\",\"topCalc\":\"avg\",\"width\":100},{\"formatterParams\":{\"target\":\"_blank\",\"min\":10,\"max\":25,\"color\":[\"blue\",\"green\",\"red\"],\"legend\":\"function (value) {return ' '+value+'°C';}\",\"legendColor\":\"#101010\",\"legendAlign\":\"left\"},\"title\":\"current\",\"field\":\"ACTUAL_TEMPERATURE-value\",\"formatter\":\"progress\",\"topCalc\":\"avg\",\"width\":100},{\"formatterParams\":{\"target\":\"_blank\",\"min\":0,\"max\":99,\"color\":[\"gray\",\"orange\",\"red\"],\"legend\":\"function (value) {return (value>0)? ' '+value+' %' : '-';}\",\"legendColor\":\"#101010\",\"legendAlign\":\"center\"},\"title\":\"Valve\",\"field\":\"VALVE_STATE-value\",\"formatter\":\"progress\",\"topCalc\":\"max\",\"width\":100},{\"formatterParams\":{\"target\":\"_blank\",\"min\":1.5,\"max\":4.6,\"color\":[\"red\",\"orange\",\"green\"],\"legend\":\"function (value) {return value+' V';}\",\"legendColor\":\"#101010\",\"legendAlign\":\"center\"},\"title\":\"Batt\",\"field\":\"BATTERY_STATE-value\",\"formatter\":\"progress\",\"topCalc\":\"min\",\"width\":100}]},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Settings\",\"columns\":[{\"formatterParams\":{\"target\":\"_blank\",\"min\":0,\"max\":30,\"color\":[\"red\",\"orange\",\"green\"],\"legend\":\"function (value) { if (value>0) return \\\"<span style='color:#101010;'>\\\"+value+\\\" min</span>\\\"; else return \\\"<span style='color:#A0A0A0;'>aus</span>\\\"; }\",\"legendColor\":\"#101010\",\"legendAlign\":\"center\"},\"title\":\"Boost\",\"field\":\"BOOST_STATE-value\",\"formatter\":\"progress\",\"width\":100},{\"formatterParams\":{\"target\":\"_blank\",\"allowEmpty\":true,\"allowTruthy\":true,\"tickElement\":\"<i class='fa fa-clock-o'></i>\",\"crossElement\":\"<i class='fa fa-ban'></i>\"},\"title\":\"Auto\",\"field\":\"AUTO_MODE-value\",\"formatter\":\"tickCross\",\"width\":100,\"align\":\"center\"},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Mode\",\"field\":\"CONTROL_MODE-value\",\"formatter\":\"function(cell, formatterParams, onRendered){ var html=\\\"<i class=\\\\\\\"\\\"; switch(cell.getValue()) { case 0: html+=\\\"fa fa-calendar-check-o\\\"; break; case 1: html+=\\\"fa fa-hand-o-up\\\"; break; case 2: html+=\\\"fa fa-suitcase\\\"; break; case 3: html+=\\\"fa fa-spinner fa-spin fa-fw\\\"; break; } html+='\\\\\\\"></i>'; return html; }\",\"width\":100,\"align\":\"center\"},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Auto\",\"field\":\"AUTO_MODE-value\",\"formatter\":\"tick\",\"width\":100,\"align\":\"center\"}]}],\"layout\":\"fitColumns\",\"movableColumns\":true,\"groupBy\":\"\"},\"customHeight\":12}","tot":"json"}],"action":"","property":"","from":"","to":"","reg":false,"x":655,"y":306,"wires":[["2bb4380c.029bb8"]]},{"id":"3bd564d4.085fac","type":"debug","z":"ab797823.3396a8","name":"","active":true,"tosidebar":true,"console":false,"tostatus":false,"complete":"true","targetType":"full","x":968,"y":306,"wires":[]},{"id":"2bb4380c.029bb8","type":"ui_table","z":"ab797823.3396a8","group":"a67c03c2.f7729","name":"Thermostats","order":1,"width":"16","height":"7","columns":[],"outputs":1,"cts":true,"x":818,"y":306,"wires":[["3bd564d4.085fac"]]},{"id":"64136364.f0802c","type":"change","z":"ab797823.3396a8","name":"ui_control","rules":[{"t":"set","p":"ui_control","pt":"msg","to":"{\"tabulator\":{\"headerVisible\":false,\"columnResized\":\"function(column){ var newColumn = { field: column._column.field, visible: column._column.visible, width: column._column.width, widthFixed: column._column.widthFixed, widthStyled: column._column.widthStyled }; this.send({topic:this.config.topic,ui_control:{callback:'columnResized',columnWidths:newColumn}}); }\",\"columnMoved\":\"function(column, columns){ var newColumns=[]; columns.forEach(function (column) { newColumns.push({'field': column._column.field}); }); this.send({topic:this.config.topic,ui_control:{callback:'columnMoved',columns:newColumns}}); }\",\"groupHeader\":\"function (value, count, data, group) {return value + \\\"<span style='color:#d00; margin-left:10px;'>(\\\" + count + \\\" Termostat\\\"+((count>1) ? \\\"e\\\" : \\\"\\\") + \\\")</span>\\\";}\",\"columns\":[{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"ROom\",\"field\":\"room\",\"width\":100,\"frozen\":true,\"headerVisible\":false},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Device\",\"field\":\"name\",\"width\":100,\"align\":\"center\"},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Type\",\"field\":\"deviceType\",\"width\":100,\"align\":\"center\"},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Measurements\",\"columns\":[{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"target\",\"field\":\"SET_TEMPERATURE-value\",\"formatter\":\"function(cell, formatterParams, onRendered){return cell.getValue()+'°C';}\",\"topCalc\":\"avg\",\"width\":100},{\"formatterParams\":{\"target\":\"_blank\",\"min\":10,\"max\":25,\"color\":[\"blue\",\"green\",\"red\"],\"legend\":\"function (value) {return ' '+value+'°C';}\",\"legendColor\":\"#101010\",\"legendAlign\":\"left\"},\"title\":\"current\",\"field\":\"ACTUAL_TEMPERATURE-value\",\"formatter\":\"progress\",\"topCalc\":\"avg\",\"width\":100},{\"formatterParams\":{\"target\":\"_blank\",\"min\":0,\"max\":99,\"color\":[\"gray\",\"orange\",\"red\"],\"legend\":\"function (value) {return (value>0)? ' '+value+' %' : '-';}\",\"legendColor\":\"#101010\",\"legendAlign\":\"center\"},\"title\":\"Valve\",\"field\":\"VALVE_STATE-value\",\"formatter\":\"progress\",\"topCalc\":\"max\",\"width\":100},{\"formatterParams\":{\"target\":\"_blank\",\"min\":1.5,\"max\":4.6,\"color\":[\"red\",\"orange\",\"green\"],\"legend\":\"function (value) {return value+' V';}\",\"legendColor\":\"#101010\",\"legendAlign\":\"center\"},\"title\":\"Batt\",\"field\":\"BATTERY_STATE-value\",\"formatter\":\"progress\",\"topCalc\":\"min\",\"width\":100}]},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Settings\",\"columns\":[{\"formatterParams\":{\"target\":\"_blank\",\"min\":0,\"max\":30,\"color\":[\"red\",\"orange\",\"green\"],\"legend\":\"function (value) { if (value>0) return \\\"<span style='color:#101010;'>\\\"+value+\\\" min</span>\\\"; else return \\\"<span style='color:#A0A0A0;'>aus</span>\\\"; }\",\"legendColor\":\"#101010\",\"legendAlign\":\"center\"},\"title\":\"Boost\",\"field\":\"BOOST_STATE-value\",\"formatter\":\"progress\",\"width\":100},{\"formatterParams\":{\"target\":\"_blank\",\"allowEmpty\":true,\"allowTruthy\":true,\"tickElement\":\"<i class='fa fa-clock-o'></i>\",\"crossElement\":\"<i class='fa fa-ban'></i>\"},\"title\":\"Auto\",\"field\":\"AUTO_MODE-value\",\"formatter\":\"tickCross\",\"width\":100,\"align\":\"center\"},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Mode\",\"field\":\"CONTROL_MODE-value\",\"formatter\":\"function(cell, formatterParams, onRendered){ var html=\\\"<i class=\\\\\\\"\\\"; switch(cell.getValue()) { case 0: html+=\\\"fa fa-calendar-check-o\\\"; break; case 1: html+=\\\"fa fa-hand-o-up\\\"; break; case 2: html+=\\\"fa fa-suitcase\\\"; break; case 3: html+=\\\"fa fa-spinner fa-spin fa-fw\\\"; break; } html+='\\\\\\\"></i>'; return html; }\",\"width\":100,\"align\":\"center\"},{\"formatterParams\":{\"target\":\"_blank\"},\"title\":\"Auto\",\"field\":\"AUTO_MODE-value\",\"formatter\":\"tick\",\"width\":100,\"align\":\"center\"}]}],\"layout\":\"fitColumns\",\"movableColumns\":true,\"groupBy\":\"\"},\"customHeight\":12}","tot":"json"}],"action":"","property":"","from":"","to":"","reg":false,"x":655,"y":357,"wires":[["2bb4380c.029bb8"]]},{"id":"e4be2f5a.73dbe","type":"inject","z":"ab797823.3396a8","name":"","topic":"","payload":"[{\"name\":\"MEQ0451495\",\"room\":\"Bathroom\",\"SET_TEMPERATURE-value\":22,\"ACTUAL_TEMPERATURE-value\":21.8,\"VALVE_STATE-value\":90,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":true,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ1875547\",\"room\":\"Living Room\",\"SET_TEMPERATURE-value\":12,\"ACTUAL_TEMPERATURE-value\":16.2,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":1},{\"name\":\"MEQ1875538\",\"room\":\"Living Room\",\"SET_TEMPERATURE-value\":18,\"ACTUAL_TEMPERATURE-value\":19.5,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.6,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":2},{\"name\":\"MEQ0447462\",\"room\":\"Kitchen\",\"SET_TEMPERATURE-value\":17,\"ACTUAL_TEMPERATURE-value\":22.2,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":10,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":3},{\"name\":\"MEQ1875551\",\"room\":\"Office\",\"SET_TEMPERATURE-value\":18,\"ACTUAL_TEMPERATURE-value\":20.2,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ0447425\",\"room\":\"Dining Room\",\"SET_TEMPERATURE-value\":19,\"ACTUAL_TEMPERATURE-value\":20.4,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ1875546\",\"room\":\"Dining Room\",\"SET_TEMPERATURE-value\":20,\"ACTUAL_TEMPERATURE-value\":18.8,\"VALVE_STATE-value\":99,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ0447483\",\"room\":\"Bedroom\",\"SET_TEMPERATURE-value\":17,\"ACTUAL_TEMPERATURE-value\":22.4,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ1875541\",\"room\":\"Child\",\"SET_TEMPERATURE-value\":18,\"ACTUAL_TEMPERATURE-value\":20.4,\"VALVE_STATE-value\":0,\"BATTERY_STATE-value\":2.7,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0},{\"name\":\"MEQ1875552\",\"room\":\"Guest Room\",\"SET_TEMPERATURE-value\":20,\"ACTUAL_TEMPERATURE-value\":21.1,\"VALVE_STATE-value\":9,\"BATTERY_STATE-value\":2.8,\"BOOST_STATE-value\":0,\"AUTO_MODE-value\":false,\"CONTROL_MODE-value\":0}]","payloadType":"json","repeat":"","crontab":"","once":false,"onceDelay":0.1,"x":509,"y":357,"wires":[["64136364.f0802c"]]},{"id":"a67c03c2.f7729","type":"ui_group","name":"Group 2","tab":"6c190871.57d428","order":2,"disp":true,"width":16},{"id":"6c190871.57d428","type":"ui_tab","z":"","name":"copypaste","icon":"dashboard","disabled":false,"hidden":false}]
I love to send you my flow of my 1st post ... but it is not finished and too big to post here: