You can have arrays with the execute script command:
In this example we first create the array “a” and then access the 2nd element:
{
"Name": "array",
"CreationDate": "2019-10-19",
"Commands": [
{
"Command": "executeScript_Sandbox",
"Target": "return new Array ('cat','dog','fish','dog','deer','frog','whale','dog','seal','horse','elephant')",
"Value": "a"
},
{
"Command": "executeScript_Sandbox",
"Target": "return ${a}[2];",
"Value": "var"
},
{
"Command": "echo",
"Target": "var=${var}",
"Value": ""
}
]
}