Pushing a page to StackView from already pushed page

I'm trying to display a page after clicking a button in qt quick, simple enough right?

The main.qml is essentially just

ApplicationWindow {

StackView {
id: stackView
anchors.fill: parent

initialItem: Pane {

id: pane
x: 0
y: 0
Mainpane {

anchors.right: parent.right
anchors.rightMargin: 0
anchors.left: parent.left
anchors.leftMargin: 0

}

}

}

Where MainPane is just a button that pushes the page StackedPage.qml to the stack.

My question is, how do I push another page, say it's called SubPage.qml to the stack from StackedPage.qml?

Do I need to create another stack in StackedPage.qml or can I push it to the main stack from main.qml?

EDIT:
So I found out that my stackView from my main page is carried through each page, so to transition between pages, I just need to pop and push.