layout.addStretch()

doneButton = QPushButton("Done")
doneButton.setParent(widget)

createLayout.insertWidget(0, doneButton)

doneButton.hide()
createButton.hide()
doneButton.show()
doneButton.hide()
createButton.show()

nameToCreate = QLineEdit()
nameToCreate.setParent(widget)

createLayout.insertWidget(createLayout.count()-2, nameToCreate)

doneButton.hide()
nameToCreate.hide()

def doCreate():
    createButton.hide()
    doneButton.show()
    nameToCreate.show()

createButton.clicked.connect(doCreate)

createdLayout = QVBoxLayout()
layout.insertLayout(layout.count()-1, createdLayout)