pageElement
Selector or XPath of the main content to insert. Can be an array of multiple pageElement. You may leave it empty because it will be generated automatically.
Example 1:
"pageElement": ".Context>.Article"
Example 2:
"pageElement": [
".Context1>.Article",
".Context2>.Article",
".Context3>.Article"
]
If there are multiple nextLink and pageElement on one page, put them in an array and switch using "switch next link".