Hi.
You should create e.g. 2 new series, define data for them and define new stack:
Please note that "default" stack is also used by the candlestick series if you haven't defined it otherwise, that's why create a new stack:
stacks: {
"myNewStack": {
type: "proportional"
}
},
When defining those new series, set stack to "myNewStack":
{
name:"SomeName",
id:"series2", //series3
type:"line",
stack: "myNewStack",
data:{
//change data index or source for each of those new series:
index:1,
source:"myNewDataSource"
},
}
If you have already tried that, please provide your example so that we can see what is not working for you and investigate the cause of the problem.