Just set small height for a chart and add sepcific series for navigator. Something like that: http://jsfiddle.net/Yrygy/137/
var chart = new Highcharts.StockChart({
chart: {
renderTo: 'container',
height: 120
},
yAxis: {
height: 1
},
xAxis: {
min: 2,
max: 4,
lineWidth: 0,
tickLength: 0,
labels: {
enabled: false
}
},
navigator: {
series: {
data: [1,2,3,4,2,3,4,2,33,4,4,3,2,3,2,3,3,2,2,3,4]
}
},
series: [{
data: [null]
}]
});